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Evaluation Modules for the the 66AK2Gxx DSP + ARM processors (EVMK2G, EVMK2GX, and EVMK2GXS) User's Guide Literature Number: SPRUI65A April 2016 – Revised January 2018

K2G General Purpose Evaluation Module (EVMK2G) TRM (Rev. A) · 2018. 1. 30. · Evaluation Modules for the the 66AK2Gxx DSP + ARM processors (EVMK2G, EVMK2GX, and EVMK2GXS) User's

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Page 1: K2G General Purpose Evaluation Module (EVMK2G) TRM (Rev. A) · 2018. 1. 30. · Evaluation Modules for the the 66AK2Gxx DSP + ARM processors (EVMK2G, EVMK2GX, and EVMK2GXS) User's

Evaluation Modules for the the 66AK2Gxx DSP+ ARM processors (EVMK2G, EVMK2GX, andEVMK2GXS)

User's Guide

Literature Number: SPRUI65AApril 2016–Revised January 2018

Page 2: K2G General Purpose Evaluation Module (EVMK2G) TRM (Rev. A) · 2018. 1. 30. · Evaluation Modules for the the 66AK2Gxx DSP + ARM processors (EVMK2G, EVMK2GX, and EVMK2GXS) User's

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Table of Contents

Contents

Preface ........................................................................................................................................ 71 Introduction......................................................................................................................... 9

1.1 Features ................................................................................................................... 91.2 Description............................................................................................................... 101.3 System View............................................................................................................. 101.4 What's in the Box?...................................................................................................... 101.5 What's Not in the Box?................................................................................................. 101.6 Acronyms ................................................................................................................ 13

2 Testing and Results ............................................................................................................ 132.1 Overview ................................................................................................................. 132.2 Setup ..................................................................................................................... 132.3 Test Points............................................................................................................... 14

3 System Description ............................................................................................................ 153.1 Functional Block Diagram ............................................................................................. 153.2 Basic Operation ......................................................................................................... 153.3 Over Voltage Protection Circuit ....................................................................................... 173.4 JTAG Emulation Overview ............................................................................................ 183.5 Board Management Controller (BMC) ............................................................................... 203.6 Clock Distribution ....................................................................................................... 223.7 DDR3L Interface ........................................................................................................ 243.8 NAND Flash ............................................................................................................. 253.9 SPI Flash ................................................................................................................ 263.10 Quad SPI (QSPI) Flash ................................................................................................ 273.11 EEPROM ................................................................................................................ 273.12 SD Card.................................................................................................................. 283.13 eMMC .................................................................................................................... 283.14 Gigabit Ethernet......................................................................................................... 303.15 PCIe ...................................................................................................................... 313.16 Display Interface ........................................................................................................ 313.17 Touch Connector ....................................................................................................... 333.18 Audio Codec............................................................................................................. 333.19 COM8 Connector ....................................................................................................... 343.20 DCAN..................................................................................................................... 343.21 MLB....................................................................................................................... 353.22 USB Host ................................................................................................................ 363.23 USB Dual Role .......................................................................................................... 363.24 UART ..................................................................................................................... 373.25 Audio Expansion Connector........................................................................................... 393.26 Serial Expansion Connector........................................................................................... 403.27 I2C Address Mapping .................................................................................................. 413.28 McASP Configuration .................................................................................................. 42

Page 3: K2G General Purpose Evaluation Module (EVMK2G) TRM (Rev. A) · 2018. 1. 30. · Evaluation Modules for the the 66AK2Gxx DSP + ARM processors (EVMK2G, EVMK2GX, and EVMK2GXS) User's

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Contents

4 Power Supply..................................................................................................................... 434.1 Power Distribution Diagram ........................................................................................... 444.2 Power Supply Calculation ............................................................................................. 454.3 Power-Up Sequence ................................................................................................... 46

5 Booting ............................................................................................................................. 475.1 Boot Mode Selection ................................................................................................... 475.2 Matrix Demonstrations ................................................................................................. 47

6 Connector Descriptions ...................................................................................................... 536.1 DC Jack (J3) ............................................................................................................ 536.2 Mini USB for On-board XDS (J1) and CP2105 (J23) .............................................................. 536.3 COM8 (J2) ............................................................................................................... 556.4 PCI Express (J5)........................................................................................................ 566.5 JTAG MIPI-60 (J19) .................................................................................................... 576.6 LCD (J22) and Touch Screen (J21) .................................................................................. 586.7 RJ45 Ethernet (J31) .................................................................................................... 606.8 Stereo Analog Audio Input (J32) and Output (J33) ................................................................ 606.9 MLB (J34)................................................................................................................ 616.10 USB0 Host Type A (J35) .............................................................................................. 616.11 HDMI (J36) .............................................................................................................. 626.12 MMC/SD (J37) .......................................................................................................... 636.13 USB1-Micro (J38)....................................................................................................... 636.14 DB9 Connector (P1, P2, and P3)..................................................................................... 64

7 Switch Descriptions............................................................................................................ 657.1 Slide Switch ............................................................................................................. 657.2 Tactile Switch ........................................................................................................... 667.3 DIP Switch ............................................................................................................... 677.4 DIP SPST Switch ....................................................................................................... 67

8 EVM Board Physical Specifications ...................................................................................... 688.1 Mounting of LCD and Spacers........................................................................................ 688.2 Board Layout ............................................................................................................ 708.3 System LEDs............................................................................................................ 728.4 Design Files ............................................................................................................. 72

9 EVM with Audio Daughter Card ............................................................................................ 749.1 K2G Audio Daughter Card Block Diagram .......................................................................... 759.2 EVM with Audio Daughter Card Connections....................................................................... 76

10 EVMK2GXS Secure EVM ..................................................................................................... 7910.1 Removing and Installing a K2G in the Socket ...................................................................... 7910.2 Initial Use of a Socketed Board ....................................................................................... 80

11 EVM Important Notice ......................................................................................................... 80Revision History.......................................................................................................................... 81

Page 4: K2G General Purpose Evaluation Module (EVMK2G) TRM (Rev. A) · 2018. 1. 30. · Evaluation Modules for the the 66AK2Gxx DSP + ARM processors (EVMK2G, EVMK2GX, and EVMK2GXS) User's

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List of Figures

List of Figures1 EVMK2G Board Assembly Pictorial - Top View........................................................................ 112 EVMK2G Board Assembly Pictorial - Bottom View .................................................................... 123 EVMK2G Functional Block Diagram ..................................................................................... 164 Over Voltage Protection Circuit........................................................................................... 175 Fault Indication Circuit ..................................................................................................... 176 Display and Trace Resistor Multiplexing ................................................................................ 187 JTAG Interface Block Diagram ........................................................................................... 198 Board Management Controller (BMC) Block Diagram................................................................. 219 66AK2Gxx SoC Clocks Block Diagram.................................................................................. 2210 Other Clocks Block Diagram.............................................................................................. 2311 DDR3L Interface Block Diagram ......................................................................................... 2412 NAND Flash Block Diagram .............................................................................................. 2513 SPI Flash Block Diagram.................................................................................................. 2614 Quad SPI (QSPI) Flash Block Diagram ................................................................................. 2715 EEPROM Interface Block Diagram ...................................................................................... 2716 SD/MMC Interface Block Diagram ....................................................................................... 2817 eMMC Interface Block Diagram .......................................................................................... 2818 eMMC and COM8 Resistor Multiplexing ................................................................................ 2919 Gigabit Ethernet Interface Block Diagram .............................................................................. 3020 PCIe Interface Block Diagram ............................................................................................ 3121 Display Interface Block Diagram ......................................................................................... 3222 Touch Interface Block Diagram........................................................................................... 3323 Audio Codec Interface Block Diagram................................................................................... 3324 COM8 Connector Interface Block Diagram ............................................................................. 3425 DCAN Interface Block Diagram .......................................................................................... 3426 MLB Interface Block Diagram............................................................................................. 3527 USB Host Interface Block Diagram ...................................................................................... 3628 USB Dual Role Interface Block Diagram................................................................................ 3629 UART0 Interface Block Diagram ......................................................................................... 3730 UART1 Interface Block Diagram ......................................................................................... 3831 UART2 Interface Block Diagram ......................................................................................... 3832 Audio Expansion Connector Interface Block Diagram ................................................................ 3933 Serial Expansion Connector Interface Block Diagram ................................................................ 4034 McASP Interface Block Diagram ......................................................................................... 4235 Power Distribution Diagram ............................................................................................... 4436 Power-Up Sequence Diagram ............................................................................................ 4637 EVMK2G Board Connectors .............................................................................................. 5438 LCD (J22) and Touch Screen (J21) Connectors ....................................................................... 5839 EVMK2G Switches ......................................................................................................... 6540 DIP (SW3) Switch .......................................................................................................... 6741 EVMK2G Mechanical Drawing ........................................................................................... 6942 EVMK2G Board Assembly Layout - Top View ......................................................................... 7043 EVMK2G Board Assembly Layout - Bottom View ..................................................................... 7144 EVMK2G Board LEDs ..................................................................................................... 7345 K2G Audio Daughter Card ................................................................................................ 7446 K2G Audio Daughter Card Block Diagram.............................................................................. 7547 Connecting the K2G Audio Daughter Card ............................................................................. 76

Page 5: K2G General Purpose Evaluation Module (EVMK2G) TRM (Rev. A) · 2018. 1. 30. · Evaluation Modules for the the 66AK2Gxx DSP + ARM processors (EVMK2G, EVMK2GX, and EVMK2GXS) User's

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List of Figures

48 Ironwood Socket............................................................................................................ 79

Page 6: K2G General Purpose Evaluation Module (EVMK2G) TRM (Rev. A) · 2018. 1. 30. · Evaluation Modules for the the 66AK2Gxx DSP + ARM processors (EVMK2G, EVMK2GX, and EVMK2GXS) User's

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List of Tables

List of Tables1 Acronyms.................................................................................................................... 132 EVMK2G Test Points ...................................................................................................... 143 Display and Trace Resistor Multiplexing ................................................................................ 194 Muxing Between BMC UART1 and SOC_UART2 ..................................................................... 205 Muxing Between BMC UART0 to USB and 4-pin Header ............................................................ 206 eMMC and COM8 Resistor Multiplexing ................................................................................ 297 DSS Lines Between LCD and HDMI Multiplexing ..................................................................... 328 HDMI Audio Line Selection Between McASP0 and McASP2 ........................................................ 339 Audio Codec Multiplexing ................................................................................................. 3310 UART0 Multiplexing ........................................................................................................ 3711 UART1 Multiplexing ........................................................................................................ 3712 SoC Address Table ........................................................................................................ 4113 BMC I2C Address Table................................................................................................... 4114 McASP Configuration ...................................................................................................... 4215 EVMK2G Regulators....................................................................................................... 4316 Power Supply Calculation ................................................................................................. 4517 Total Current and Power Consumption ................................................................................. 4618 EVMK2G Board Connectors .............................................................................................. 5319 COM8 (J2) Pin List......................................................................................................... 5520 PCI Express (J5) Pin List.................................................................................................. 5621 JTAG MIPI-60 (J19) Pin List .............................................................................................. 5722 LCD (J22) and Touch Screen (J21) Pin List............................................................................ 5823 RJ45 Ethernet (J31) Pin List.............................................................................................. 6024 Stereo Analog Audio Input (J32) and Output (J33) Pin List .......................................................... 6025 MLB (J34) Pin List.......................................................................................................... 6126 USB0 Host Type A (J35) Pin List ........................................................................................ 6127 HDMI (J36) Pin List ........................................................................................................ 6228 MMC/SD (J37) Pin List .................................................................................................... 6329 USB1-Micro (J38) Pin List................................................................................................. 6330 DB9 Connector (P1, P2, and P3) Pin List............................................................................... 6431 EVMK2G Tactile Switches ................................................................................................ 6632 Boot Mode Configurations for SW3 ...................................................................................... 6733 EVMK2G Board LEDs ..................................................................................................... 72

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Preface

PrefaceSPRUI65A–April 2016–Revised January 2018

Read This First

About This ManualThis user's guide (UG) describes the hardware architecture of the 66AK2Gxx General Purpose (GP)Evaluation Module (EVMK2G) designed and developed by Mistral Solutions Pvt. Ltd. The 66AK2Gxx is aKeyStone™ II-based DSP + ARM System-on-Chip (SoC).

There are three variants of the EVM for the K2G. These include the EVMK2G, the EVMK2GX, and theEVMK2GXS.

The EVMK2G has a 66AK2G02 operating at 600 MHz installed. This board includes the TPS659118power supply for generating all voltages needed by the 66AK2G02.

The EVMK2GX has a 66AK2G12 operating at 1 GHz installed. This board includes the TPS65911A powersupply for generating all voltages needed by the 66AK2G12.

The EVMK2GXS has a socket for installation of a 66AK2G12HS operating at 1 GHz. This board includesthe TPS65911A power supply for generating all voltages needed by the 66AK2G12.

The information in this document pertains to all three versions of the board. In all cases, the EVM isreferred to generically as the EVMK2G.

GlossaryTI Glossary —This glossary lists and explains terms, acronyms, and definitions.

Related Documentation From Texas InstrumentsFor product information, visit the Texas Instruments website at http://www.ti.com.

SPRUHY8— 66AK2Gx Multicore DSP+ARM KeyStone II System-on-Chip (SoC) Technical ReferenceManual. Details the integration, the environment, the functional description, and the programmingmodels for each peripheral and subsystem in the device.

Community ResourcesThe following links connect to TI community resources. Linked contents are provided "AS IS" by therespective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views;see TI's Terms of Use.

TI E2E™ Online Community— TI's Engineer-to-Engineer (E2E) Community. Created to fostercollaboration among engineers. At e2e.ti.com, you can ask questions, share knowledge, exploreideas and help solve problems with fellow engineers.

TI Embedded Processors Wiki— Texas Instruments Embedded Processors Wiki. Established to helpdevelopers get started with Embedded Processors from Texas Instruments and to foster innovationand growth of general knowledge about the hardware and software surrounding these devices.

Board History

PCB Revision HistoryRev A Pre-Proto EVM for power, Board management Controller and On-board emulator validation.Rev B Socketed Proto EVM for Silicon bring up.Rev C Modified as per change list MS_TI_EVMK2G_MC_REVC_CHNG_LIST.xlsRev D Over Voltage protection circuit added.

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Read This First

TrademarksKeyStone, E2E, Code Composer Studio, Tiva, WiLink are trademarks of Texas Instruments.ARM, Cortex are registered trademarks of ARM Limited.

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K2G General Purpose Evaluation Module (EVMK2G)

User's GuideSPRUI65A–April 2016–Revised January 2018

K2G General Purpose Evaluation Module (EVMK2G)

1 IntroductionThis user's guide describes the hardware architecture of the 66AK2Gxx General Purpose (GP) EvaluationModule (EVMK2G) designed and developed by Mistral Solutions Pvt. Ltd. The 66AK2Gxx is a KeyStone™II-based DSP + ARM System-on-Chip (SoC). There are three variants of the K2G EVM.

1.1 FeaturesThe key features of the EVMK2G are:• Based on the KeyStone II architecture with ARM® Cortex®-A15 @ 600 MHz or 1 GHz, and

TMS320C66x DSP @ 600 MHz or 1 GHz• Board Management Controller (BMC) for board management functions like system status and Boot

mode control• 2 GByte of DDR3L with ECC• 2 Gbit of NAND Flash• 128 Mbit of SPI Flash• 512 Mbit of QSPI Flash• 128 kByte of I2C EEPROM for Boot support from I2C• Micro SD-Card slot• 16 GByte of eMMC• Gigabit Ethernet port supporting 10/100/1000 Mbps data rate on RJ45 connector• PCIe ×1 card slot• 4.3” LCD display with Capacitive touch (not provided)• HDMI transmitter• Audio Line In and Line Out• COM8 interface• DCAN and MLB interfaces• One USB2.0 host and one USB2.0 Dual-role ports• One RS-232 serial interface on DB9 connector or UART over mini-USB connector, One UART

interface on 6-pin header• Audio Daughter Card (not provided) plugable to Audio Expansion, Serial Expansion headers• MIPI 60-pin JTAG header to support all types of external emulator• On-board XDS200 Emulator• RoHS compliant design• Powered by DC power-wall adapter (12V/5A) (not provided)• ATX form factor (12” × 9.6” )

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K2G General Purpose Evaluation Module (EVMK2G)

1.2 DescriptionThe EVMK2G is a high-performance, cost-efficient, standalone, general-purpose development platformthat enables you to evaluate and develop applications for the Texas Instrument’s Keystone II System-on-Chip (SoC) 66AK2Gxx.

The K2G SoC (66AK2Gxx) is the new device from TI’s Keystone II architecture with:• ARM® Cortex®-A15 Microprocessor Unit (ARM A15) Subsystem at up to 600 MHz or 1 GHz• TMS320C66x Fixed- and Floating-Point VLIW DSP Subsystem at up to 600 MHz or 1 GHz• Two Programmable Real-Time Unit and Industrial Communication Subsystems (PRU-ICSS)• Multicore Shared Memory Controller (MSMC) with 1024KB of Shared L2 RAM• Up to 36-Bit DDR3 External Memory Interface (EMIF) with ECC (32-Bit Data + 4-Bit ECC)• Peripheral Component Interconnect Express (PCIe) 2.0 Port with Integrated PHY• Three Multichannel Audio Serial Port (McASP) Peripherals• Multichannel Buffered Serial Port (McBSP)• Six Enhanced High-Resolution Pulse Width Modulation (eHRPWM) Modules• Three Inter-Integrated Circuit (I2C) Interfaces• Three Universal Asynchronous Receiver/Transmitter (UART) Interfaces• Four Serial Peripheral Interfaces (SPI)• Seven 64-Bit Timers• Secure Device - Supports Standard secure boot and One-time-Programmable (OTP) memory for key

storage• 21 × 2 mm2 0.8mm pitch WBBGA

1.3 System ViewThe top and the bottom pictorial views of the EVMK2G are provided in Figure 1 and Figure 2, respectively.

1.4 What's in the Box?The EVMK2G Kit contains the following parts:• An on-board, high-speed XDS200 Emulator• Parts for assembling the LCD and the spacers• Mini-B to standard A-type USB cable• Micro-B to standard A-type USB cable• USB adapters: USB micro-A/B to A socket type adapter• Ethernet cable• Female to female RS-232 serial cable (cross cable)• Micro-SD card 32GB• SD card reader• uSD to SD adapter

1.5 What's Not in the Box?The EVMK2G Kit does not contain the following parts:• Audio Daughter Card (TI part number AUDK2G)• Power supply (CUI, Inc., part number SDI65-12-U-P5)• LCD Touchscreen display (Newhaven Display, Intl., part number NHD-4.3-480272EF-ATXL#-CTP)

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BMCLCD

BMCJTAG

COM8Connector

+12 V DC

BMCController

66AK2GxxSoC

PCIeConnector

DCAN0

UART0Over DB9

SoC UART0&

BMC UART0Over USB

BMCUART0

DCAN1

UART2

LCDConnector

HDMIConnector

RJ45Ethernet

Connection

USB0Host

Mini USBFor XDS200

AudioLine Out

TouchConnector

MLBConnector

USB1Dual Role

Micro SD cardConnector

AudioLine In

MiPi 60Connector

Audio ExpansionConnector

Serial ExpansionConnector

www.ti.com Introduction

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K2G General Purpose Evaluation Module (EVMK2G)

Figure 1. EVMK2G Board Assembly Pictorial - Top View

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NANDFlash

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K2G General Purpose Evaluation Module (EVMK2G)

Figure 2. EVMK2G Board Assembly Pictorial - Bottom View

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K2G General Purpose Evaluation Module (EVMK2G)

1.6 AcronymsTable 1 is a description of some terms used in this document.

Table 1. Acronyms

Acronym DescriptionATX Advanced Technology eXtendedBMC Board Management ControllerCCS Code Composer Studio

DDR3 Double Data Rate 3 InterfaceDSP Digital Signal Processor

eHRPWM Enhanced High-Resolution Pulse Width ModulationEEPROM Electrically-Erasable Programmable Read-Only Memory

EMAC Ethernet Media Access ControllerEMIF External Memory InterfaceEVM Evaluation Module

EVMK2G 66AK2Gxx General Purpose (GP) Evaluation ModuleI2C Inter-Integrated Circuit

JTAG Joint Test Action GroupLED Light-Emitting Diode

McASP Multichannel Audio Serial PortMMC Module Management ControllerPCIe Peripheral Component Interconnect ExpressSoC System-on-ChipSPI Serial Peripheral Interfaces

UART Universal Asynchronous Receiver/TransmitterUSB Universal Serial Bus

XDS200 Texas Instruments’ Emulator

2 Testing and Results

2.1 Overview

2.2 Setup

Page 14: K2G General Purpose Evaluation Module (EVMK2G) TRM (Rev. A) · 2018. 1. 30. · Evaluation Modules for the the 66AK2Gxx DSP + ARM processors (EVMK2G, EVMK2GX, and EVMK2GXS) User's

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K2G General Purpose Evaluation Module (EVMK2G)

2.3 Test PointsThe EVMK2G board has 187 test points. Each test point and its function is given in Table 2.

Table 2. EVMK2G Test Points

TestPoint Signal

TestPoint Signal

TestPoint Signal

TestPoint Signal

9 Reserved for U51 61 DGND 110 LDO5_3V3 160 Reserved for U62.4513 Reserved for U20B 62 DGND 111 U32-2.G6-GPIO5 161 Reserved for U62.4514 Reserved for J2 63 VCC12V0_DC_IN 112 NRESPWRON1 162 Reserved for U62.4515 Reserved for J2 64 VCC12V0_DC_IN 113 PMIC_VDD2 163 Reserved for U62.4516 Reserved for J2 65 Reserved for U17-4 114 U32-2.EN2 164 MFP217 Reserved for J2 66 Reserved for U20A 115 Reserved for U39.A7 165 MFP318 Reserved for J2 67 Reserved for U20A 116 U32-2.EN1 166 HDMI_CEC_D19 Reserved for U20B 68 Reserved for U20A 117 U32-2.GPIO8 167 U96-GPIO220 Reserved for U20G.V5 69 Reserved for U20A 118 LDO2_1V8 168 U96-GPIO121 Reserved for U20A 70 Reserved for U20A 119 LDO8_3V3 169 LINE2L+22 Reserved for U20A 71 Reserved for U20A 120 LDO6_3V3 170 LINE2L-23 Reserved for J2 72 Reserved for U20A 121 LDO7_3V3 171 LED_MODE25 Reserved for J2 74 Reserved for U20A 122 LDO1_1V8 172 HPLCOM26 Reserved for J2 75 Reserved for U20A 123 Reserved for U46.A7 173 HPRCOM29 TPS65000_PG# 76 Reserved for U20A 124 MMC1POW 174 Reserved for J3430 COM_GPIO9 77 Reserved for U20A 125 Reserved for U1-16.J3 175 U32-2 . GPIO031 COM_BTUARTDEBUG 78 Reserved for U20A 126 Reserved for U49.A7 176 BMC_JTAG_TRSTn33 COM_GPIO10 79 Reserved for U20A 127 SYSCLKOUT 177 Reserved for U17-634 COM_GPIO12 80 Reserved for U20A 128 Reserved for U52.A7 178 Reserved for U17-935 COM_GPIO11 81 Reserved for U20A 129 DGND 179 Reserved for J3436 T_TDIS 82 Reserved for U17-4 131 OBSCLK_N 180 Reserved for U20F37 SPARE0 84 VRTC 132 RMIIREFCLK/

PR0ECAP0ECAPSYNCOUT

181 Reserved for U20F

38 SPARE1 85 PMIC_PGOOD 133 SoC Reserved pin 182 Reserved for U20B39 uEXP3 86 Reserved for U20B 135 OBSCLK_P 184 Reserved for U5140 MEM_A12 88 U32-2 - GPIO3 136 SoC Reserved pin 185 Reserved for U5141 uEXP2 89 U32-2 - TEST 138 SoC Reserved pin 186 Reserved for U5142 VCC5V0_DCDC 90 DGND 139 SoC Reserved pin 187 Reserved for U5143 Reserved for U17-1 91 U32-2.C6-TRAN 140 SoC Reserved pin 189 Reserved for U5144 uEXP1 92 DGND 141 SoC Reserved pin 191 Reserved for U5145 Reserved for U17-1 93 Reserved for U20-L 142 SoC Reserved pin 192 Reserved for U5146 uEXP0 94 Reserved for U20-L 143 SoC Reserved pin 193 BUF_McASP2ACLKX47 Reserved for U17-1 95 Reserved for U20-L 144 SoC Reserved pin 194 VCC3V3_DC_CONN48 Reserved for U17-6 96 Reserved for U20-L 145 SoC Reserved pin 195 VCC3V349 Reserved for U17-1 97 XOSC1 146 SoC Reserved pin 196 VCC1V2_XDS50 Reserved for U17-6 98 BMC_HIBn 147 SoC Reserved pin 197 VCC1V8_XDS51 U18 SS/TR 100 LDO4_1V8 149 SoC Reserved pin 198 VCC3V3_XDS52 5V_PWRGD 101 CLK32KOUT 150 SoC Reserved pin 199 VCC3V3_DCIN53 U18.8-COMP 102 U32-2.D5-EN 151 SoC Reserved pin 200 3V3_DCIN_PG54 Reserved for U20B 103 LDO3_1V8 152 VLED+ 201 DGND55 3V3_CONN_PG 104 DGND 153 DDR_ODT1 202 DGND56 Reserved for U20J.A4 106 Reserved for U27.A7 154 DDR_CKE1 203 DGND57 Reserved for

U17-5.T19107 U32-2.F6-GPIO1 155 DDR_CE1Z 204 DGND

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K2G General Purpose Evaluation Module (EVMK2G)

Table 2. EVMK2G Test Points (continued)TestPoint Signal

TestPoint Signal

TestPoint Signal

TestPoint Signal

58 Reserved for U20A 108 U32-2.H7-GPIO4 157 SOC_DSS_FID 205 BUF_McASP2FSX59 Reserved for U20A 109 U32-2.G8-VREF 158 Reserved for U62.45 206 BUF_MCASP2AXR2

159 SOC_SPI3_MISO 207 BUF_MCASP2AXR3208 HDMI_AUDD0209 HDMI_AUDD1210 HDMI_AUDD2211 HDMI_AUDD3212 HDMI_AUDMCLK213 HDMI_AUDBCLK214 HDMI_AUDFSX

3 System Description

3.1 Functional Block DiagramThe functional block diagram of the EVMK2G is shown in Figure 3.

3.2 Basic OperationThe EVMK2G is a full-featured general-purpose development tool for the 66AKGxx Keystone II-basedSoC. It supports a comprehensive software including the Texas Instruments Code Composer Studio™(CCS) integrated development environment (IDE) and Processor Software Development Kit (SDK). TheProcessor SDK is a unified software platform for TI embedded processors providing easy setup and fastout-of-the-box access to benchmarks and demos.

The Processor SDK for the EVMK2G can be downloaded from Processor SDK for 66AK2Gx Processors -Linux and TI-RTOS Support.

The latest version of CCS can be downloaded from Code Composer Studio (CCS) IntegratedDevelopment Environment (IDE). It is recommended to use CCS revision 6.1.2 or later with the EVMK2G.

The Processor SDK Linux images are preprogrammed to the SD Card that is shipped with the EVMK2G.Refer to the Processor SDK user guide for more details on running Linux with the EVM.

Refer to documentation available at Processor SDK for 66AK2Gx Processors - Linux and TI-RTOSSupport for instructions on setting up CCS and exploring software packages delivered with the EVMK2G.

NOTE: For TI RTOS users, refer to the Processor SDK RTOS Getting Started Guide.

Page 16: K2G General Purpose Evaluation Module (EVMK2G) TRM (Rev. A) · 2018. 1. 30. · Evaluation Modules for the the 66AK2Gxx DSP + ARM processors (EVMK2G, EVMK2GX, and EVMK2GXS) User's

Copyright © 2018, Texas Instruments Incorporated

TLV70708LP2996A

PMIC t TPS659118 or TPS65911N

PB Switch Bank (4)

DIP Switch Bank (4)

NAND (x16) Flash

66AK2GxxSoC

1x PCIe Card-Edge

Connector

Serial expansion header

JTAG / EMU[1:0]

GPIO / EMU[19:2]JTAG / EMU Muxes / Buffers

MIPI Connector

JTAGEMU[19:0]

GPIOs

SPI0

Mini USB

CP2105

UART1

Timer 1

I2C0

SmartReflex

Resets /

Boot

PCI CE Reference Clock

SYSCLK

DDRCLK

USB0_CLK

24MHz XO

MMC0 (3.3V)

MMC1 (1.8V)

DDR3 EMIF

(x36)DDR3 devices

QSPI

MLB

LCD, touch connectors

DSS-UL

NSS (RGMII)

UART0

SPI1

SPI2

CDCM620

8

USB1_CLK

I2C1

I2C2

McBSP

Quad SPI512 Mbit

Samtec QSH-020-01-L-D-DP-A

PCIe

USB0 t 2.0pair

USB1 t 2.0pair

PCIECLK

UART2

SPI3

I2C EEPROM

SPINOR FLASH

USB2.0Type A socket

NSS (MDIO)

Micrel KSZ9031RNX

RJ4525 MHz

XtalMDIO

eMMC

uSDCard

CPTS CS2000

DCAN1

To DSS-UL

touch screen

connector

I2C1,

GPIO

AUDIOOSC22.5792 MHz Xtal

SYSOSC24 MHz Xtal

DUT Adj. Supply

#1

AVS Core /

_�s��_

(+0.9V)

DUT Adj. Supply

#2

DSP Core Fixed

Core / ^�s��1"

(+0.9V)

SERDES L.V. Supply

^>�K_PCIE/USB_��W_

(+0.85V)

DUT Adj. Supply

#5

^�s��_��Z_

(+1.35V)DUT Fixed Supply³''595()667/´

DDR VTT(+0.675V)

DUT Adj. Supply

#3

^�s��18_

DSP IO / PLL

(+1.8V)

DUT Adj. Supply

#4

^�s��33_

DSP IO

(+3.3V)

INA226 INA226 INA226 INA226 INA226

S25FL512S

Timer 0

SiI902

2A

HDMIType A

To DSS-UL connectors,

due to pin muxing.

Need isolation in

between.

100 MHz (HCSL)

100 MHz (LVDS)

24 MHz (LVCMOS)

CPTSREFCLK

24 MHz (LVDS)

USB2.0Micro-AB

DCAN0

To 2-pin

header

CAN xcvr

SN65HVDA54

To DB-9

1588

DAC

TC-

VCXO SPI3

SPI3 to 1588 circuit

DB9 Conn

RS232

COM8 connector

To COM8

UART1

Level shifter McASP2

GPIO

Console headerTo BMC

To BMC

McASP2

McASP1

McASP0

AIC310

6McASP2

3.5mm stereo jacks

To AIC3106

I2C1

GPMCAudio

expansion header

To COM8

eQEP

eHRPWM3, 4, 5

eCAP0, 1

To DSS-UL connectors, due to

pin muxing.

eHRPWM0, 1, 2

Mini-USB

XDS200

I2C2

BMC

LED x4

16x2 LCD character display

BMC, WARM,

FULL RESETS

CP2105

Console header

NOTE: all port numbers within the

BMC block are BMC port numbers, not SoC port numbers.

PH[3:0]

PJ0, PJ1, RSTn

UART0

I2C1To K2G SOC

JTAG14-pin header

SPI1

UART1 RxSoC UART2 Tx

DSS Isolator

To 2-pin

header

CAN xcvr

SN65HVDA54

To DB-9

PHY can also be clocked

from RMII_CLK output

pin.

Kingston

Switch

Resistor MUX

100 MHz (CML)

250 MHz (LVDS)

Rakon

E6718LF

DAC8550

20 MHz

MT29F2G16ABA

MT41K512M8RH (qty 5)

Y4

Y5

Y3Y2

Y6Y7

To PMIC

I2C1

MAX3221

MINI USB

Temperature

Sensor

I2C0 To INA226 x5

McASP0 from

Expansion

Connector

SN74AVC4T245PWR

I2C to GPIO expander

TCA9555RTWR

To 5 pin

header/BMC

System Description www.ti.com

16 SPRUI65A–April 2016–Revised January 2018Submit Documentation Feedback

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K2G General Purpose Evaluation Module (EVMK2G)

Figure 3. EVMK2G Functional Block Diagram

Page 17: K2G General Purpose Evaluation Module (EVMK2G) TRM (Rev. A) · 2018. 1. 30. · Evaluation Modules for the the 66AK2Gxx DSP + ARM processors (EVMK2G, EVMK2GX, and EVMK2GXS) User's

Condition LED Status(LD14)

VINPUT between 11 to 13V&

Current below 5A

ON

OFF

RED

VINPUT above 13V or below 11V&

Current above 5A

PGD

DGND

VINPUTVINPUT

DGND

R925100 K

LD14

598-8110-107F

12

R924

10 K

D18BZT52C13S

21

R923

10 K Q19

BSS138

3

1

2

Copyright © 2016, Texas Instruments Incorporated

Note:-

Vinput nominal = 12VI input max = 5A

RED

Condition

ONReverse Voltage

LED Status(LD15)

PGD

GATE

GATE

DGND DGND

DGND

DGNDDGND DGNDDGND DGND

VCC12V0_DC_IN

DGND

VINPUT

VINPUT

DGND

DGND DGND

VCC12V0_DC_INVINPUT

DGND

+

C23

100uF

_35V

R922

100K

+

C825

22uF_100V

U149

LM5060MM

SENSE1

VIN

2

OVP3

UVLO4

EN5

GN

D6

TIMER7

NPGD8

OUT9

GATE10

R918261K_1%

D19S1G-13-F

21

R9175.62k_1%

LD15598-8110-107F

12

J50

HDR_2X112

R892

0E

R919237K_1%

R92610K

LD9598-8170-107F

12

C827

0.01uF

DNI

F2

5A1 2

D17

SMCJ64CA

21

R92047K _1%

C8260.1uF

R301K

D3

B540C-13-F

2 1

R92147K _1%

Q20 SUM60N10-17-E3

4

1

3

C8240.1uF

C2

22uF

J3

CON_PWRJACK3_RAPC722

1

23

SW1

500ASSP3M2QE

12

3

Copyright © 2016, Texas Instruments Incorporated

www.ti.com System Description

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K2G General Purpose Evaluation Module (EVMK2G)

3.3 Over Voltage Protection CircuitThe Voltage Protection Circuit on the EVMK2G protects the board from over voltage, under voltage,transient voltage, and reverse voltage input cases. The safe operation input voltage range is 11v to 13v.Any voltage not in this range is considered a fault and the voltage protection circuit (Figure 4) isolates theboard from this input. LED LD14 (Figure 5) indicates if the DC input applied to board is in a safe inputrange.

Figure 4. Over Voltage Protection Circuit

Figure 5. Fault Indication Circuit

Page 18: K2G General Purpose Evaluation Module (EVMK2G) TRM (Rev. A) · 2018. 1. 30. · Evaluation Modules for the the 66AK2Gxx DSP + ARM processors (EVMK2G, EVMK2GX, and EVMK2GXS) User's

MIPI_EMU18MIPI_EMU19

MIPI_EMU17MIPI_EMU16MIPI_EMU14MIPI_EMU11MIPI_EMU15MIPI_EMU10MIPI_EMU12MIPI_EMU13

MIPI_EMU02

MIPI_EMU03

MIPI_EMU04

MIPI_EMU05

MIPI_EMU06

MIPI_EMU07

MIPI_EMU08

MIPI_EMU09

SOC_DSSDATA620SOC_DSSDATA720

BUFF_DSSDATA6 19BUFF_DSSDATA7 19

SOC_DSSDATA520SOC_DSSDATA420 BUFF_DSSDATA4 19

BUFF_DSSDATA5 19

SOC_DSSDATA1920SOC_DSSDATA1720SOC_DSSDATA2220SOC_DSSDATA1620SOC_DSSDATA2320SOC_DSSDATA2120SOC_DSSDATA1820SOC_DSSDATA2020 BUFF_DSSDATA20 19

BUFF_DSSDATA18 19BUFF_DSSDATA21 19BUFF_DSSDATA23 19BUFF_DSSDATA16 19BUFF_DSSDATA22 19BUFF_DSSDATA17 19BUFF_DSSDATA19 19

SOC_DSSDATA820SOC_DSSDATA920SOC_DSSDATA1120SOC_DSSDATA1420SOC_DSSDATA1020SOC_DSSDATA1520SOC_DSSDATA1320SOC_DSSDATA1220 BUFF_DSSDATA12 19

BUFF_DSSDATA13 19BUFF_DSSDATA15 19BUFF_DSSDATA10 19BUFF_DSSDATA14 19BUFF_DSSDATA11 19BUFF_DSSDATA9 19BUFF_DSSDATA8 19

RA8 0E

12345678

161514131211109

RA7 0E

1234 5

678

RA19 10EDNI

12345678

161514131211109

RA17 10EDNI

1234 5

678

RA9 0E

12345678

161514131211109

RA18 10EDNI

12345678

161514131211109

Copyright © 2016, Texas Instruments Incorporated

System Description www.ti.com

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K2G General Purpose Evaluation Module (EVMK2G)

3.4 JTAG Emulation OverviewThe EVM supports two types of Emulation: On-Board-XDS200 emulator and 60-pin MIPI Header.

When external emulator is not connected to MIPI 60-pin connector, On-board XDS200 embedded JTAGemulator is the default type of emulation (SoC JTAG signals are routed to XDS200 on-board emulator).When external emulator is connected to MIPI 60-pin header, it is automatically detected and SoC JTAGsignals are routed to external emulator.

3.4.1 On-Board XDS200 EmulatorThe EVMK2G has on-board XDS200 embedded JTAG emulation circuitry. Hence user does not requireany external emulator to connect EVM with Code Composer Studio (CCS). You can connect the targetSoC in the EVM to CCS through the USB cable supplied in the EVM kit.

3.4.2 MIPI 60-pin Header for Connecting External EmulatorIn case you want to connect an external emulator to the EVM, the MIPI 60-pin JTAG header is providedon-board for high-speed real-time emulation. All JTAG and EMUx signals are terminated on the MIPI 60-pin header.

The MIPI 60-pin JTAG header supports all standard (XDS510 or XDS560) TI DSP emulators. Refer to thedocumentation supplied with your emulator for connection assistance.

EMU pins are pin muxed with DSS (Display Subsystem) and Boot mode pins. The EMU signals areresistor muxed with DSS signals. A Boot mode buffer is enabled during boot-up to latch the Boot modesignals.

Resistor muxing between display and trace functionality is shown in Figure 6 and Table 3.

Figure 6. Display and Trace Resistor Multiplexing

Page 19: K2G General Purpose Evaluation Module (EVMK2G) TRM (Rev. A) · 2018. 1. 30. · Evaluation Modules for the the 66AK2Gxx DSP + ARM processors (EVMK2G, EVMK2GX, and EVMK2GXS) User's

K2G SoC

CPLD

BUFFER

FET SWICH

RESISTOR

MUX

EMU [00:01]

EMU [02:19]

2

18

SD RAM

AM1802

PROCESSOR

JTAG

SIGNALS

CPLD

I/Os

SPI1 6 A0-11

12

DQ0-15

BA0-1

18

6

6

MIPI - 60

JTAG

SIGNALS

BUFFER

FET

SWITCH

JTAG

SIGNALS

6

6

SPI FLASH

CONTROLSIGNALS

8

Copyright © 2016, Texas Instruments Incorporated

www.ti.com System Description

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K2G General Purpose Evaluation Module (EVMK2G)

Table 3. Display and Trace Resistor Multiplexing

DNI Mount DescriptionRA17, RA18, RA19 RA7, RA8, RA9 For HDMI/LCD display (default)

RA7, RA8, RA9 RA17, RA18, RA19 For Trace

The JTAG interface, on-board XDS200 emulator, MIPI 60-pin header for external emulator connectiondetails are shown in Figure 7.

Figure 7. JTAG Interface Block Diagram

Page 20: K2G General Purpose Evaluation Module (EVMK2G) TRM (Rev. A) · 2018. 1. 30. · Evaluation Modules for the the 66AK2Gxx DSP + ARM processors (EVMK2G, EVMK2GX, and EVMK2GXS) User's

System Description www.ti.com

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K2G General Purpose Evaluation Module (EVMK2G)

3.5 Board Management Controller (BMC)The Tiva™ C Series ARM® Cortex®-M4 microcontroller TM4C129XNCZAD is used as a boardmanagement controller for the EVMK2G. The BMC controls the SoC boot sequence and displays thestatus on the character LCD interfaced to the BMC. The BMC facilitates the selection of Boot mode, resetsettings, and configuring clock generators.

The JTAG interface is provided to access and program the BMC controller. Note that the BMC is usedmainly for EVM test automation and, in general, is not required for customer products.

The push buttons, DIP switches, and LEDs are connected to the BMC by way of GPIOs. The 4-bit DIPswitch is used to set the processor boot mode, the three push buttons are for reset, and the remaining areuser configurable.

Isolators are used between the BMC and SoC peripherals. The BMC is interfaced to the SoC throughI2C1 and UART1. The BMC I2C0 is interfaced to the INA devices for processor current monitoring. TheBMC UART0 is muxed between the 4-pin header through RS-232 level translator and the CP2105 forconsole purpose.

Table 4. Muxing Between BMC UART1 and SOC_UART2

Signal Logic SoC UART 2 Connected To

BMC_UART_SELHigh UART2 header (J49)Low BMC

Table 5. Muxing Between BMC UART0 to USB and 4-pin Header

Signal Logic BMC_UART0 Pins Connected To

BMC_UART0_DETECTHigh USB-to-UART module CP2105Low BMC console 4-pin header (J6)

Page 21: K2G General Purpose Evaluation Module (EVMK2G) TRM (Rev. A) · 2018. 1. 30. · Evaluation Modules for the the 66AK2Gxx DSP + ARM processors (EVMK2G, EVMK2GX, and EVMK2GXS) User's

CDCM6208

ISOLATOR x4

BMC

DC-DC

LM22675

DIP

Switch

LED

LCD

128 X 32

Pixels

DC_DC

TPS54429ERSAREN

Push

Button

x6

MUX/Buffer

PMIC DC_DC

TPS54429ERSAR

Buffer

Buffer

Isolator

Isolator

5 Pin HDR

INA226 x5

12V

12 V

12V

MAX3221

SPI1

GPIOs

4

EN

GPIOs

SPI0

23 GPIOs

2

JTAG Lines

I2C1

I2C0

INT1

BMC_RESETn

5

INT

UART1

DSS[8:23]

16

UART0

3.3V

CP2105

4 Pin HDR

K2G SoC

I2C2

I2C0

CVDD

CVDD1

DVDD_DDR

3.3V

-Mini USB

SoC_INT

BMC_INT

UART2

BOOT MODE SIGNALS

JTAG

14 Pin

ConnectorGPIOs

SOC,

DEVICES

RESET &

CTRL

Signals

Copyright © 2016, Texas Instruments Incorporated

www.ti.com System Description

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K2G General Purpose Evaluation Module (EVMK2G)

The BMC is powered from 12V through the LM22675 DC-DC regulator. The connection details are shownin Figure 8.

Figure 8. Board Management Controller (BMC) Block Diagram

Page 22: K2G General Purpose Evaluation Module (EVMK2G) TRM (Rev. A) · 2018. 1. 30. · Evaluation Modules for the the 66AK2Gxx DSP + ARM processors (EVMK2G, EVMK2GX, and EVMK2GXS) User's

Y8

CDCM6208

PCIe x1 Connector

K2G SoC

CS2000

CLKOUT

Y7

CLKIN

PCIe_CLK_100MHz

AUDOSC_IN

AUDOSC_OUT

SYSOSC_IN

SYSOSC_OUT

CPTS_TS_COMP

SYSCLOCK

CPTS_REFCLK

DDR_CLK

PCIe_CLK

McASP2AHCLK

24 MHz

250 MHz

24 MHz

100 MHz

100 MHz

Y5

Y6

Copyright © 2016, Texas Instruments Incorporated

System Description www.ti.com

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K2G General Purpose Evaluation Module (EVMK2G)

3.6 Clock DistributionThe EVMK2G has the following clock sources, crystals, and oscillators.• 66AK2Gxx SoC clocks (see Figure 9):

– Y5: 22.579 MHz Audio clock for SoC– Y6: 24 MHz System clock to the SoC– Y7: 12.28 MHz to CS2000– Y8: 24 MHz Secondary Reference for clock generator– U62: CDCM clock generator

• Other clocks (see Figure 10):– Y1: 32.768 kHz to AM1802 XDS– Y2: 24 MHz System clock to AM1802 XDS– Y3: 25 MHz Clock to BMC Controller– Y4: 32.768 kHz Real-Time Clock (RTC) to Power Management IC (TPS659118)– Y9: 25 MHz Clock for Ethernet PHY– U21: 32.768 kHz Real-Time Clock (RTC) to BMC– U75: 12.28 MHz Oscillator for audio clocks

Figure 9. 66AK2Gxx SoC Clocks Block Diagram

Page 23: K2G General Purpose Evaluation Module (EVMK2G) TRM (Rev. A) · 2018. 1. 30. · Evaluation Modules for the the 66AK2Gxx DSP + ARM processors (EVMK2G, EVMK2GX, and EVMK2GXS) User's

Y4

AM1802

PMIC

Audio Codec

HDMI TX

32.768 kHz

BMC

12.288MHz

Y2

Y1

Y9

Y3

KSZ9031RNX

Copyright © 2016, Texas Instruments Incorporated

www.ti.com System Description

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K2G General Purpose Evaluation Module (EVMK2G)

Figure 10. Other Clocks Block Diagram

Page 24: K2G General Purpose Evaluation Module (EVMK2G) TRM (Rev. A) · 2018. 1. 30. · Evaluation Modules for the the 66AK2Gxx DSP + ARM processors (EVMK2G, EVMK2GX, and EVMK2GXS) User's

Copyright © 2016, Texas Instruments Incorporated

K2G SoC

DDR3L

MT41K512M8RH-125:E

DDR3LMT41K512M8RH

-125:E

DDR3LMT41K512M8RH

-125:E

DDR3LMT41K512M8RH

-125:E

DDR3LMT41K512M8RH

-125:E

DD

R3C

LK0

CE

0#

RA

S#

A0-A

15

BA

0-BA

2

CK

E0#

CA

S#

RE

SE

T#

WE

#

OD

T0

DVDD_DDR

1.35V

CBDQM

CBDQS

CB00-CB03

DQM3

DQS3

DQ24-DQ31

DQM2

DQS2

DQ16-DQ23

DQM1

DQS1

DQ8-DQ15

DQM0

DQS0

DQ0-DQ7

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K2G General Purpose Evaluation Module (EVMK2G)

3.7 DDR3L InterfaceThe 66AK2Gxx SoC supports ×36 bit (32-bit data + 4-bit ECC) DDR3L. Four 4-Gbit (512M × 8) DDR3Lchips (MT41K512M8RH-125) from Micron are used to obtain a memory size of 2GByte and one DDR3Lchip is interfaced to the ECC data bus CB00-CB03, CBDQS, and CBDQM. The DDR3L chips are routedas per Fly-by topology as shown in Figure 11.

Figure 11. DDR3L Interface Block Diagram

Page 25: K2G General Purpose Evaluation Module (EVMK2G) TRM (Rev. A) · 2018. 1. 30. · Evaluation Modules for the the 66AK2Gxx DSP + ARM processors (EVMK2G, EVMK2GX, and EVMK2GXS) User's

Copyright © 2016, Texas Instruments Incorporated

NAND FLASHMT29F2G16ABA

K2G SoC

GPMC_AD [0:15]

GPMC_ADVn_ALE

GPMC_BEn0_CLE

GPMC_OEn_REN

GPMC_WEn

GPMC_WPn

GPMC_CSn0

GPMC_WAIT0

3.3 V

I/O

ALE

CLE

#RE

#WE

#WP

#CE

R/B#

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K2G General Purpose Evaluation Module (EVMK2G)

3.8 NAND Flash2-Gbit NAND Flash (MT29F2G16ABA) from Micron with a 16-bit data width is interfaced to the processorGPMC (General-Purpose Memory Controller) interface. The NAND Flash is interfaced to GPMC chipselect 0.

The connection details are as shown in Figure 12. The operating voltage of the GPMC interface andNAND flash is 3.3v.

Figure 12. NAND Flash Block Diagram

Page 26: K2G General Purpose Evaluation Module (EVMK2G) TRM (Rev. A) · 2018. 1. 30. · Evaluation Modules for the the 66AK2Gxx DSP + ARM processors (EVMK2G, EVMK2GX, and EVMK2GXS) User's

K2G SoC

SPI FLASH

N25Q128A13ESF40F

RESET#

BMC

AND GATE

SOC_RESETSTATz

FLASH_WP#

FLASH_RESET#

3.3 V

GPIO

SPI1_MOSI

SPI1_CSn0

SPI1_MISO

SPI1_CLK

Q

#S

D

#HOLD

C

#W

Copyright © 2016, Texas Instruments Incorporated

System Description www.ti.com

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K2G General Purpose Evaluation Module (EVMK2G)

3.9 SPI FlashThe SPI Flash (N25Q128A13ESFESF40F) from Micron is a 128-Mbit Serial Flash interfaced as shown inFigure 13. The Serial Flash is interfaced to the SPI1 port of the processor and is connected to chipselect 0.

The write protection for the Flash is controlled by the BMC. The Hold signal (to pause the serialcommunication without deselecting the device) is connected to SoC GPIO with a default pull-up.

Figure 13. SPI Flash Block Diagram

Page 27: K2G General Purpose Evaluation Module (EVMK2G) TRM (Rev. A) · 2018. 1. 30. · Evaluation Modules for the the 66AK2Gxx DSP + ARM processors (EVMK2G, EVMK2GX, and EVMK2GXS) User's

Copyright © 2016, Texas Instruments Incorporated

K2G SoC

EEPROMAT24CM01

EEPROM_WP

WP

I2C2_SDA

I2C2_SCL

3.3 V

SCL

SDA

BMC

Copyright © 2016, Texas Instruments Incorporated

RESET#

QSPI FLASHS25FL512S

K2G SoC

AND GATE

SOC_RESETSTAT

QSPI_RSTn

QSPI_RCLK

QSPI_D3

QSPI_D0

QSPI_CSn0

QSPI_CLK

QSPI_D1

QSPI_D2I/O1

CS#

SCK

I/O3

I/O2

I/O0

3.3 V

BMC

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K2G General Purpose Evaluation Module (EVMK2G)

3.10 Quad SPI (QSPI) FlashThe Quad SPI (QSPI) Flash is a 512-Mbit device (S25FL512S) from Spansion interfaced as shown inFigure 14. The reset signal for the QSPI Flash is connected to the BMC. The Quad SPI Flash is interfacedto chip select 0 of the QSPI interface on the processor.

Figure 14. Quad SPI (QSPI) Flash Block Diagram

3.11 EEPROMThe Atmel AT24CM01 provides 1Mb of Serial Electrically-Erasable and Programmable Read-OnlyMemory (SEEPROM). This is interfaced to I2C0 port of the processor as shown in Figure 15. The deviceaddress is set by the two address pins A1 and A2 that are connected to ground to give a 7-bit address0x50. The Write protect pin of the EEPROM is connected to a GPIO of the BMC.

Figure 15. EEPROM Interface Block Diagram

Page 28: K2G General Purpose Evaluation Module (EVMK2G) TRM (Rev. A) · 2018. 1. 30. · Evaluation Modules for the the 66AK2Gxx DSP + ARM processors (EVMK2G, EVMK2GX, and EVMK2GXS) User's

eMMC

(eMMC16G-S100) K2G SoC

MMC1_CLK

MMC1_CMD

CMD

CLK

MMC1_D [0-8]

D [0-8]

MMC1_CLK

MMC1_CMD

MMC1_D [0-4]

COM8

Connector

Copyright © 2016, Texas Instruments Incorporated

ESD

DIODES

MICROSD CARD

CONN

K2G SoC

3.3 V

MMC0_CLKMMC0_CMD

MMC0_D [0-3]MMC0_SDCD

CMDCLK

D[0-3]CD

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System Description www.ti.com

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K2G General Purpose Evaluation Module (EVMK2G)

3.12 SD CardMicro SD Card connector is connected to MMC0 interface of the processor as shown in Figure 16. ESDprotection circuits are included for all the connector pins that are prone to ESD. Refer to Section 6.12 forSD Card connector pin outs.

Figure 16. SD/MMC Interface Block Diagram

3.13 eMMCThe eMMC flash chip from Kingston (16GB) is interfaced with MMC1 of the processor as shown inFigure 17. MMC1 is muxed between the eMMC Flash and the COM8 connector. By default, MMC1 isconnected to eMMC.

Resistor muxing between eMMC and COM8 is shown in Figure 18 and Table 6.

Figure 17. eMMC Interface Block Diagram

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DGND

NOTE: MMC1 IS BY DEFAULT CONNECTED TO EMMC. IF COM8 TO BE USED RESISTOR RA6, R387 AND R822SHOULD BE DNI AND RQZZ+15, R713, R714 & R393 SHOULD BE MOUNTED

SOC_MMC1_CLKSOC_MMC1_CMD

SOC_MMC1_DAT0

SOC_MMC1_DAT3SOC_MMC1_DAT2SOC_MMC1_DAT1

BUF_MMC1_DAT0 23BUF_MMC1_DAT1 23BUF_MMC1_DAT2 23BUF_MMC1_DAT3 23

BUF_MMC1_CMD 23BUF_MMC1_CLK 23

R714 0E_1%DNI

RA15 0EDNI

1234 5

678

R713 0E_1%DNI

SOC_MMC1_DAT4SOC_MMC1_DAT5

SOC_MMC1_DAT0_R

SOC_MMC1_DAT7

SOC_MMC1_DAT3_R

SOC_MMC1_DAT1_R

SOC_MMC1_DAT6

SOC_MMC1_DAT2_R

SOC_MMC1_SDWP

SOC_MMC1_CLKSOC_MMC1_CMD

SOC_MMC1_DAT3

SOC_MMC1_DAT1SOC_MMC1_DAT2

SOC_MMC1_DAT0

SOC_MMC1_CLK_RSOC_MMC1_CMD_R

TRANS_EMMC_RSTn17R3471K

TP124SMD

TP125SMD

R281

10K

_1%

RA6 0E

1234 5

678 R

286

10K

_1%

R304

10K

_1%

MM

C1

U1-16

66AK2G02

MMC1CLK /GPIO0_67J4

MMC1DAT0/GPIO0_66H3

MMC1DAT1/GPIO0_65F5

MMC1DAT2/GPIO0_64J5

MMC1DAT3/GPIO0_63H4

MMC1DAT5/GPIO0_61G4

MMC1DAT6F4

MMC1DAT7/GPIO0_59G5

MMC1SDCD/GPIO0_69J3

MMC1SDWP/GPIO0_70K3

MMC1POWK2

MMC1DAT4E3

MMC1CMDJ2

R267

R3880E_1%

R676 0E_1%DNI

R3870E_1%

R292

10K

_1%

R299

10K

_1%

R269

10K

_1%

R271

10K

_1%

SOC_MCASP2AXR0

SOC_MCASP2AXR2SOC_MCASP2AXR1

SOC_McASP2ACLKX

SOC_McASP2AHCLKR

SOC_McASP2AHCLKX

SOC_McASP2FSX

SOC_MCASP2AMUTE

SOC_MCASP2AXR3

SOC_McASP2ACLKRSOC_McASP2FSR

SOC_MCASP2AXR4SOC_MCASP2AXR5

SOC_MCASP2AXR0_RSOC_MCASP2AXR0SOC_MCASP2AMUTE SOC_MCASP2AMUTE_R

SOC_MCASP2AXR3 23

SOC_MCASP2AXR4 23

SOC_MCASP2AXR1 23

SOC_MCASP2AXR2 23

SOC_McASP2ACLKX 23SOC_McASP2FSX 23

SOC_McASP2AHCLKR 36

WLAN_TRANS_EN 23,29

SoC_LED0 34

R415 0E_1%

R393 0E_1%DNI

R396 0E_1%

R413 0E_1%

R420 0E_1%

R409 0E_1%

R407 0E_1%

McASP2

U1-8

66AK2G02

GPIO0_109/MCASP2AXR1A2

GPIO0_110/MCASP2AXR2E4

GPIO0_114/MCASP2ACLKRB2

GPIO0_112/MCASP2AXR4A3

GPIO0_113/MCASP2AXR5E5

GPIO0_120/MCASP2ACLKXB3

GPIO0_116/MCASP2AHCLKRE6

GPIO0_119/MCASP2AHCLKXD5

GPIO0_108/MCASP2AXR0D3

XREFCLK/GPIO0_117/MCASP2AMUTEC2

GPIO0_115/MCASP2FSRD4

GPIO0_118/MCASP2FSXC3

GPIO0_111/MCASP2AXR3B1

R822 0E_1%DNI

R411 0E_1%

R428 0E_1%

R401 0E_1%

R417 0E_1%

R423 0E_1%

R821 0E_1%DNI

R433 0E_1%

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K2G General Purpose Evaluation Module (EVMK2G)

Figure 18. eMMC and COM8 Resistor Multiplexing

Table 6. eMMC and COM8 Resistor Multiplexing

DNI Mount DescriptionRA6, R387, R388, and R822 RA15, R713, R714, and R393 Connect MMC1 to COM8RA15, R713, R714, and R393 RA6, R387, R388, and R822 Connect MMC1 to eMMC (default)

Page 30: K2G General Purpose Evaluation Module (EVMK2G) TRM (Rev. A) · 2018. 1. 30. · Evaluation Modules for the the 66AK2Gxx DSP + ARM processors (EVMK2G, EVMK2GX, and EVMK2GXS) User's

Gigabit Ethernet PHYKSZ9031RNX

K2G SoC

RJ45Connector with

MagneticsLPJG16314A4NL

RGMII_TXCLK

RGMII_TXCTL

RGMII_TXD [0-3]

RGMII_RXCLK

RGMII_RXCTL

RGMII_RXD [0-3]

MDIO_CLK

MDIO_DATA

TXC

TX_CTL

TD [0-3]

RXC

MDIO

RX_CTL/PHYAD2

RD [0-3] / MODE [0:3]

MDC

TXRXPA

TXRXMA

TXRXPB

TXRXMB

TXRXPC

TXRXMC

TXRXPD

TXRXMD

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System Description www.ti.com

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K2G General Purpose Evaluation Module (EVMK2G)

3.14 Gigabit EthernetThe Gigabit Ethernet PHY (KSZ9031RNX) from MICREL is interfaced to the RGMII port of the processoras shown in Figure 19.

The RJ45 connector with magnetics is interfaced to the MDI (media dependent interface) port of PHY. ThePHY address, PHYAD [2:0], is sampled and latched at power-up/reset and is configurable to any valuefrom 0 to 7. Each PHY address bit is configured as:• Pull-up = 1• Pull-down = 0

The MODE [3:0] pins are sampled and latched at power-up/reset. Each Mode bit is configured as:• Pull-up = 1• Pull-down = 0

The MODE pins are set for RGMII mode (10/100/1000 speed half/full-duplex).

Reference clock for PHY is provided by the 25-MHz crystal, Y9. (See Section 3.6)

Figure 19. Gigabit Ethernet Interface Block Diagram

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CDCM6208

K2G SoC

100MHz(CML)

TXN0TXP0

RXN0RXN0

PCIE_CLK_P/N

x1 Edge Card Connector

TXP0

RXN0RXP0

TXN0

100MHz (HCSL)

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K2G General Purpose Evaluation Module (EVMK2G)

3.15 PCIeThe PCIe RX and TX pairs are connected to x1 PCIe edge card connector as shown in Figure 20. Clockgenerator (CDCM6208) provides the 100-MHz reference clocks for the PCIe port of the processor and tothe daughter card that connects to the edge card connector.

Figure 20. PCIe Interface Block Diagram

3.16 Display InterfaceThe Display interface (DSS) is muxed between the LCD and the HDMI transmitter SiI9022A as shown inFigure 21. The DSS is muxed using two 32-bit buffers to connect to the LCD or the HDMI transmitter.Either the LCD or the HDMI transmitter is enabled by switches SW13 and SW14:• for HDMI: SW13 and SW14 = ON• for LCD: SW13 and SW14 = OFF

3.16.1 LCDThe TFT LCD module (NHD-4.3-480272EF-ATXL-CTP) from Newhaven display can be plugged into the40-pin FPC connector on the EVMK2G. The LCD backlight is driven by DC-DC boost-converterTPS61081DRCT.

The LCD is not part of the EVMK2G kit, it should be purchased separately. More details of LCDinstallation procedure is provided in Section 8.

3.16.2 HDMI TransmitterThe EVMK2G supports HDMI interface with the HDMI transmitter SiI9022A. The HDMI signals areterminated to a connector by way of an ESD protection device TPD12S016PWR. The HDMI interface iscontrolled by I2C1 of the SoC. The HDMI signals consist of three differential pairs of data lines and onedifferential pair of clock line.

The McASP2 is interfaced to the HDMI transmitter to support audio over HDMI and I2C1 for control.McASP2TX is shared between the HDMI transmitter and the Audio Codec. The Audio MCLK for the HDMItransmitter is derived from a 12.288-MHz Oscillator, U75, that is shared between the Audio Codec and theHDMI transmitter (See Section 3.6).

Page 32: K2G General Purpose Evaluation Module (EVMK2G) TRM (Rev. A) · 2018. 1. 30. · Evaluation Modules for the the 66AK2Gxx DSP + ARM processors (EVMK2G, EVMK2GX, and EVMK2GXS) User's

Copyright © 2016, Texas Instruments Incorporated

SW14

OE# 3.3 V 1.2 V

EVMK2G SOC

DSS_DE

DSS_PCLK

DSS_DATA [0:23]

32 bit Buffer

S74LVC32244ZKER

DSS_HSYNC LCD Conn40 pin FPC Connector

DSS_VSYNC

32 bit Buffer

S74LVC32244ZKER

SW13 K2G SoC

OE#

ESDTPD12S016

I2C1_SDA

I2C1_SCL

HDMIAudio

Selection

HDMI TransmitterSiI9022A

12.288MHz OSC

HDMI Connector

Std Type A

HD

MI_C

E

HD

MI_H

P

HD

MI_ I2C

TM

DS

_CL

TM

DS

_TX

HD

MI_C

E

HD

MI_H

PLG

HD

MI_I2C

TM

DS

_CL

TM

DS

_TX

MCASP2_ACLKX

MCASP2_AFSX

MCASP2_AXR

MCASP0_ACLKX

MCASP0_AFSX

MCASP0_AXR

LCD_AC_BIAS_EN

LCD_PCLK

LCDDATA [0:23]

LCD_HSYNC

LCD_VSYNC

HDMI_AC_BIAS_EN

HDMI DATA

HDMI HSYNC

HDMI_VSYNC

HDMI_PCLK

System Description www.ti.com

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K2G General Purpose Evaluation Module (EVMK2G)

Figure 21. Display Interface Block Diagram

Table 7. DSS Lines Between LCD and HDMI Multiplexing

SW13 and SW14 Position Signal ResultON SEL_HDMIn signal is low HDMI is enabledOFF SEL_LCDn signal becomes low LCD is enabled

Page 33: K2G General Purpose Evaluation Module (EVMK2G) TRM (Rev. A) · 2018. 1. 30. · Evaluation Modules for the the 66AK2Gxx DSP + ARM processors (EVMK2G, EVMK2GX, and EVMK2GXS) User's

K2G SoC

Buffer

SW15 OE#

MCASP2_AXR [2:3]

MCASP2_AFSX

MCASP2_ACLKXHPROUT

HPLOUT

LINE1R

LINE1L

Copyright © 2016, Texas Instruments Incorporated

AUDIO

CODEC

TLV320AIC

K2G SoC

TOUCH Connector

I2C1_SDA

I2C1_SCL

TOUCH_INTR

RST

Copyright © 2016, Texas Instruments Incorporated

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K2G General Purpose Evaluation Module (EVMK2G)

Table 8. HDMI Audio Line Selection Between McASP0 and McASP2

Signal Logic Result

DC_BRD_DETLow McASP2 is connected to HDMI Transmitter SiI9022A.High McASP0 is connected to HDMI Transmitter SiI9022A.

3.17 Touch Connector

NOTE: The EVMK2G does not come with an LCD Touchscreen display, it should be purchasedseparately.

The Touch Connector interface is shown in Figure 22.

Figure 22. Touch Interface Block Diagram

3.18 Audio CodecThe Audio Codec TLV320AIC3106IRGZT is interfaced to the McASP2 port of the processor as shown inFigure 23. The ACLKX and FSX lines of McASP2 are shared between the Audio Codec, COM8, and theHDMI transmitter. Hence, a buffer with OE# is connected as shown in Figure 23 for muxing. Switch SW15is turned ON for connecting the McASP2 to the Audio Codec. Audio Line In and Line Out are providedthrough 3.5mm audio jacks (J32 and J33).

Figure 23. Audio Codec Interface Block Diagram

Table 9. Audio Codec Multiplexing

Signal Switch OutputAUD_BUFF_EN SW15 is ON SOC_McASP2 signals are going to Audio Codec and HDMI transmitter.

COM8_BUFF_EN SW11 is ON COM8 signals are connected to SOC_McASP2.

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Copyright © 2016, Texas Instruments Incorporated

K2G SoC

CANTransceiver

ISO1050DUB

DB9

Connector

DCAN_TX

DCAN_RX

Copyright © 2016, Texas Instruments Incorporated

K2G SoC

COM8

Connector

OE#

Level

Translator

SN74AVC4T245PW

SDIO Buffer

TXB0108PWR

MMC1_D [0-3]

MMC1_CMD

WLAN_EN

UART1_TX

UART1_RX

UART1_CTS

MMC1_CLK

UART1_RTS

MCASP2_AXR [0:1]

MCASP2_ACLKR

MCASP2_AFSR

System Description www.ti.com

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K2G General Purpose Evaluation Module (EVMK2G)

3.19 COM8 ConnectorThe COM8 connector interface is generally used to communicate with wireless modules. It can beconnected to a WiLink™ 8 module. A Level Translator SN74AVC4T245PW is used to convert the signalsUART and McASP from 3.3V to 1.8V as shown in Figure 24.

Figure 24. COM8 Connector Interface Block Diagram

3.20 DCANThe CAN transceiver ISO1050DUB is connected to DCAN0 and DCAN1 interface of the processor asshown in Figure 25.

Figure 25. DCAN Interface Block Diagram

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MLBK2G SoC

MLB_PCLKN

MLB_PSIGP

MLB_PSIGN

MLB_PDATP

MLB_PDATN

MLB_PCLKP

MLB_CLK

MLB_DAT

MLB_SIG

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K2G General Purpose Evaluation Module (EVMK2G)

3.21 MLBThe Media Local Bus (MLB) interface signals are terminated in Samtec’s QSH-020-01-L-D-DP-Aconnector as shown in Figure 26.

Figure 26. MLB Interface Block Diagram

Page 36: K2G General Purpose Evaluation Module (EVMK2G) TRM (Rev. A) · 2018. 1. 30. · Evaluation Modules for the the 66AK2Gxx DSP + ARM processors (EVMK2G, EVMK2GX, and EVMK2GXS) User's

5V USB1_VBUS

USB1_VBUS

USB-OTGMicro-AB Connector

K2G SoC

Common ModeChoke

ESD Diodes(TPD2EUSB30DRTR)

POWER

SWITCH

EN

USB1_DP

USB1_DRVVBUS

USB1_DM

USB1_ID

Copyright © 2016, Texas Instruments Incorporated

USB0_VBUS

POWERSWITCH

EN

ESD Diodes(TPD2EUSB30DRTR)

CommonModeChoke

K2G SoC

USB Type A

USB0_DRVVBUS

USB0_ID

USB0_VBUS

USB0_DMUSB0_DP

5V

Copyright © 2016, Texas Instruments Incorporated

System Description www.ti.com

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K2G General Purpose Evaluation Module (EVMK2G)

3.22 USB HostUSB0 shall be used for the USB Host interface in the EVMK2G. The USB0ID pin is grounded through a 0-ohm resistor in order to configure it as USB Host as shown in Figure 26. Common mode choke coil andESD diodes (TPD2EUSB30DRTR) are used on USB data signals. A power distribution switch(TPS2051BD) is used to deliver USB power to the devices.

Figure 27. USB Host Interface Block Diagram

3.23 USB Dual RoleUSB1 shall be configured as the USB Dual Role in the EVMK2G. The USB Dual Role interface is shownin Figure 28. Common mode choke coil and ESD diodes are used on USB data signals. A powerdistribution switch (TPS2051BD) is used to deliver USB power when it acts as a host.

Figure 28. USB Dual Role Interface Block Diagram

Page 37: K2G General Purpose Evaluation Module (EVMK2G) TRM (Rev. A) · 2018. 1. 30. · Evaluation Modules for the the 66AK2Gxx DSP + ARM processors (EVMK2G, EVMK2GX, and EVMK2GXS) User's

Serial ExpansionConnector

DB9Connector

UART Transceiver

Buffer

K2G SoC

USBMini-B

Connector

USB to UARTCP2105

Buffer

UART0_RX

CP2105_DP

CP2105_DM

SOC_UART0_CP2105_EN

OE#

OE#

UART0_RTS

UART0_CTS

UART0_TX

UART0_TXVR_EN

Copyright © 2016, Texas Instruments Incorporated

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K2G General Purpose Evaluation Module (EVMK2G)

3.24 UARTThere are three UART ports available in the EVMK2G.

UART0 debug port is multiplexed between the DB9 port, USB-to-UART converter (CP2105), and theSerial Expansion header as shown in Figure 29.

Table 10. UART0 Multiplexing

Signal SW12 Logic SoC UART0 Pins Connected To

UART0_TXVR_ENON Low DB9 connector via RS-232 chip.OFF High USB-to-UART converter CP2105.

UART1 is connected to the COM8 connector as shown in Figure 30. Connection to COM8 and eMMC ismuxed and is explained in Section 3.13.

Table 11. UART1 Multiplexing

Signal Logic Output

WLAN_TRANS_ENLow SoC UART1 pins are connected to COM8High MMC1 connected

UART2 is muxed between the BMC UART1 and the 6-pin header, as shown in Figure 31 and explained inSection 3.5.

Figure 29. UART0 Interface Block Diagram

Page 38: K2G General Purpose Evaluation Module (EVMK2G) TRM (Rev. A) · 2018. 1. 30. · Evaluation Modules for the the 66AK2Gxx DSP + ARM processors (EVMK2G, EVMK2GX, and EVMK2GXS) User's

K2G SoC

BMCUART1

UART2_TX

UART2_RX

Buffer

TX

RX 6 Pin

Header Buffer

TX

RX

OE#

OE#

BMC_UART_SEL

Copyright © 2016, Texas Instruments Incorporated

Copyright © 2016, Texas Instruments Incorporated

K2G SoC

LevelTranslator

COM8 Connector

OE#

COM_BTUARTTX

COM_BTUARTRX

COM_BTUARTRTS

COM_BTUARTCTS

UART1_TX

UART1_RX

UART1_CTSn

UART1_RTSn

WLAN_TRANS_EN

System Description www.ti.com

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K2G General Purpose Evaluation Module (EVMK2G)

Figure 30. UART1 Interface Block Diagram

Figure 31. UART2 Interface Block Diagram

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Copyright © 2016, Texas Instruments Incorporated

K2G SoC

AUDIO ExpansionConnector

McASP0_AXR [0:7], [12-15]

MCASP0_AFSX

MCASP1_AFSX

SPI2_SCS0/SPI2_SCS1

SPI2_CLK SPI2_SIMO

SCL1

SDA1

MCASP1_AHCLKX

MCASP0_AHCLKX

MCASP0_AMUTE

GPIO

MCASP1_AXR [0:9]

MCASP2_AXR 5

MCASP0_AFSR

MCASP0_AHCLKR

MCASP1_AFSR

MCASP1_ACLKR

MCASP1_AHCLKR

MCASP2_AFSR

MCASP2_ACLKR

MCASP2_AHCLKR

SPI2_SOMI

MCASP1_ACLKX

MCASP0_ACLKX

MCASP0_ACLKR

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K2G General Purpose Evaluation Module (EVMK2G)

3.25 Audio Expansion ConnectorThe EVMK2G consists of an audio expansion connector for an audio daughter card. Audio expansionconnector contains McASP0, McASP1, and McASP2 signals along with the I2C1, SPI2, and GPIO signalsas shown in Figure 32.

Figure 32. Audio Expansion Connector Interface Block Diagram

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Copyright © 2016, Texas Instruments Incorporated

K2G SoC

SerialExpansionConnector

I2C2_SCL

I2C2_SDA

TIMO0

eHRPWM5_B

eHRPWM_TZn3

eHRPWM_TZn4

I2C0_SCL

I2C0_SDA

TIMO1

SPI0_CLK

SPI0_SIMO

ECAP1_IN_PWM1_OUT

TIMI0

eHRPWM3_SYNCO

SPI0_SOMI

UART0

eHRPWM3_A

eHRPWM3_B

eHRPWM3_SYNCI

eHRPWM4_A

eHRPWM5_A

eHRPWM4_B

eHRPWM_TZn5

TIMI1

SPI0_SCS0

UART0

System Description www.ti.com

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K2G General Purpose Evaluation Module (EVMK2G)

3.26 Serial Expansion ConnectorThe EVMK2G consists of a Serial Expansion connector that contains I2C0, SPI0, UART0, Timer 0,Timer1, eHRPWM3, eHRPWM4, eHRPWM5, and eCAP signals as shown in Figure 33.

Figure 33. Serial Expansion Connector Interface Block Diagram

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K2G General Purpose Evaluation Module (EVMK2G)

3.27 I2C Address MappingThe address mapping for the I2C interface on the EVMK2G is shown in Table 12 and Table 13.

Table 12. SoC Address Table

I2C Used Device Address

I2C0

EEPROM 0x50, 0x51BMC 0x0 (Programmable)

Serial Expansion Connector TBDPCIe Connector TBD

I2C1

HDMI Transmitter 0x3B, 0x3F, 0x62Audio Codec 0x1BTouch Screen 0x70, 0x71I/O Expander 0x20

Temperature Sensor 0x48MLB Connector TBD

Audio Expansion Connector 0x4A, 0x4B, 0x4C, 0x4DClock Generator 0x4F

I2C2 PMIC0x2D (General Purpose)0x12 (Voltage Scaling)

Table 13. BMC I2C Address Table

BMC I2C Used Device 7-Bit Address

I2C0 PMBUS

0x40 : 3.3V0x41 : CVDD0x42 : CVDD1

0x43 : 1.8V0x44 : DVDD_DDR

I2C1 Processor Always Master

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BCKO

LRCKO

DOUTSCKO

DOUT1

DOUT2

DOUT1DOUT2

SCKI

SCKI

BCK

BCK

LRCK

LRCK

DIN[1:4]

DIN[1:4]

SCKI

BCK

BCKSCKI

LRCK

LRCK

MUTE

MUTE

MCLKOUTBCLKOUTLRCKOUTDOUT[0:3]

DIN[0:7]

MCLKINBCLKINLRCKIN

HD

MT

XR

AUDIO CODEC

CO

M8

AU

DIO

EX

PA

NS

ION

CO

NN

EC

TO

R

AD

C0

DIR

90

01

AD

C1

DA

C0

I2S

HE

AD

ER

DA

C1

MCASP2_ACLKX

MCASP2_AFSX

MCASP2_AXR2

MCASP2_AXR3

MCASP2_ACLKR

MCASP2_AFSR

MCASP2_AXR5

MCASP1_AXR0

MCASP1_AXR1

MCASP1_AHCLKR

MCASP1_AFSR

MCASP1_ACLKR

MCASP1_AXR2

MCASP1_AXR3

MCASP0_AXR[0:3]

MCASP0_ACLKX

MCASP0_AFSX

MCASP0_AHCLKX

MCASP0_AXR[4:7]

MCASP0_AXR[12:15]

MCASP0_AHCLKR

MCASP0_AFSRMCASP0_ACLKR

MCASP1_AHCLKX

MCASP2_AHCLKR CS2000

BU

FF

ER

M

c

A

S

P

2

M

c

A

S

P

1

M

c

A

S

P

0

A

U

D

I

O

D

A

U

G

H

T

E

R

C

A

R

D

BUFFER

MCASP2_AXR4BUFFER

MUX 2

4

4

44

4

4

12.288MHzOSC

BUFFER

MCASP2_AXR1

4

BU

FF

ER

JUMPER

4

BU

FF

ER

BUFFER

BU

FF

ER

4

OE#

BUFFER

JUMPER

4

Digital Audio OUTCoaxial RCA Conn

MCASP1_AXR9

MCASP0_AMUTEMUX

DNI

OE#

DIN

DOUT

WCLK

BCLK

AUD_CLK

AUD_DOUT

AUD_DIN

AUD_FSYNC

MCLK

SD[0:3]

MCLK

WS

SCK

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3.28 McASP Configuration

Table 14. McASP Configuration

McASP Port Device Clock MasterMcASP0 RX I2S Header I2S HeaderMcASP0 TX DAC McASP0 TXMcASP1 RX ADC- PCM1865 x2 McASP1 RX

McASP2 TXHDMI Transmitter McASP2 TX

Audio Codec AIC3106 McASP2 TX

McASP2 RXDIR9001 DIR9001

Audio Codec AIC3106 McASP2 Rx (SYNC mode)COM8 COM8

Figure 34. McASP Interface Block Diagram

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4 Power Supply

NOTE: Always use the power supply (CUI, Inc., part number SDI65-12-U-P5) or an equivalent12V/5A model with the applicable regional product regulatory/safety certification standardssuch as (by example) UL, CSA, VDE, CCC, PSE, and so on.

The EVMK2G can be powered from a single +12V/5.0A DC (60W) external power supply connected to theDC power jack (J3). Internally, +12V input is converted into required voltage levels using local DC-DCconverters. The regulators used in the EVM are listed in Table 15.

Table 15. EVMK2G Regulators

Regulator PurposeTPS54429 3V3 Generation

TPS54620RGY 5V GenerationLM22675MR 3V3 Generation for BMC

TPS650006RTET For on-board emulator circuitryTPS79601DCQR COM8

TPS71712 HDMITPS61081 LCD Backlight

LP3985IM5-3.0 BMC DisplayTPS659118 All voltages for processor

LP2996A DDRTLV707085DQNT PCIe, USB

The power requirements of the processor are met by the TPS659118 (U32) Power Management IC(PMIC). The generation and sequencing requirements of various powers to the 66AK2Gxx processor arealso handled by the TPS659118. The TPS659118 is controlled by the I2C0 interface of the 66AK2Gxx.• Core Voltage

– PMIC_VDD1– PMIC_VDD2– CVDD

• LDO Voltages– LDO1_1V8– LDO2_1V8– LDO3_1V8– LDO4_1V8– LDO5_3V3– LDO6_3V3– LDO7_3V3– LDO8_3V3

• I/O Voltages– PMIC_VIO

• RTC Voltages– VRTC

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+3.3V2554mA

Level Translator x3

SN74AVC4T245PW

I2C EEPROM

AT24CM01

AUD EXP INA226 x5 TEMP SENSOR

TMP102AIDRLTTCA9517DGKR

VCC12V0_DC_IN+12V780mA

VCC12V0_DC_IN+12V1160mA

SOC GPIO

VCC12V0_MLB

+12V

EN AUDIO EXPANSION CONNECTOR

VCC12V0_AUD_EXP

+12V

750mA

VCC12V0_DC_IN+12V380mA

LP2996ASD#

VDDR_VTT+0.675V272mA

VCC_DDR_VREF+0.675V0.05mA

DDR_VREF+0.675V0.010mA

ETHERNET PHY

KSZ9031RNXCARJ45 LEDs x2

LEDs x7GPIO EXPANDER

TCA9555RTWR

EMMC16G-S100 UART TO USB

CP2105CS2000CP-CZZ

DAC 8550IBDGKT

MLB CONNECTOR370mA DCAN R1Z-3.305

x2400mA

CLOCK

CDCM6208V2RGZT

TPS54429

LDO3_1V8,+1.8V,90mA

12.288MHz

HDMI

SiI9022ACNU

CLOCK

CDCM6208V2RGZT

DSS BUFFER x2

MICRO SD CARD

TLV707085DQNT

LDO_PCIE/USB_CAP,+0.85V109mA

LED

LED

LED

LED x 3

TOUCH SCREEN & LCD

TPS54620RGY LM22675MR

LP3985IM5-3.0TPS79601DRBR

PMIC TPS659118

BMC DISPLAY

NHD-C12832A1Z-NSW-BBW-3V3

BOARD MANAGEMENT

CONTROLLER( BMC)

TM4C129XNCZADI3

VCC12V0_DC_IN

+12V

1679mA

VCC3V0_BMC_LCD

+3V

35mA

VCC5V0_DCDC

+5V

4741mA

VCC3V3_BMC

+3.3V

924mA

TPS71712 TPS61081TPS650006RTET

VCC1V2

+1.2V

60mA

VLED+

+19.2V

40mA

LCD BACKLIGHT

NHD-4.3-480272EF-ATXL-CTPHDMI TX

SiI9022ACNU

VCOM_BAT

1000mA

VCC1V2_XDS+1.2V38mA

VCC1V8_XDS+1.8V18.3mA

VCC3V3_XDS+3.3V365mA

SPI FLASH

IS25CD010-JNLE

COM8 CONN

DDR3 x5

MT41K512M8RH-125:E

SDRAM

MT48LC4M16A2B4

-75G

AVDDA_XPLLDVDD18+1.8V300mA

Level Translator x3

SN74AVC4T245PW

COM8 VBAT

LDO

QSPI

S25FL512SAGMFI011

SPI EPROM

N25Q128A13ESF40F

NAND FLASH

MT29F2G16ABAFAWP:F

DVDD33,VCC3V3+3.3V133mA

AUDIO CODEC

TLV320AIC3106IRGZT

EMMC16G-S100

K2G PROCESSOR

(66AK2Gxx)

CVDD+0.9V4654mA

DVDD_DDR+1.35V284mA

USB0 LOAD SWITCH

TPS2051BD

CPLD

XC2C64A-5VQ44C

PROCESSOR

AM1802

PROCESSOR

AM1802

CPLD

XC2C64A-5VQ44C

PROCESSOR

AM1802

VCC12V0_DC_IN

+12V

310mA

CVDD1+0.9V464mA

DCAN0 & 1

ISO1050

AUDIO CODEC

TLV320AIC3106IRGZT

NOTE: REGULATORS

DEVICES

Multiple powered

device

VCC5V0_USBx 1000mA

EN

VCC3V3

EN5V_EN

EN

VCC3V3

EN

VCC_VBUS_XDS

VCC1V8LDO2+1.8V276mA

ENPMIC_GPIO2

VDD_DDR+1.35V1175mA

TPS54429

VCC12V0

+12V

1243mA

USB1 LOAD SWITCH

TPS2051BD

DC IN

+12V

7.6A

PCIE CONNECTOR3300mA

VCC12V0_PCIE+12V2000mA

PMIC_VIO

VCC3V3_DC_INVCC5V0_DC_DC

EN

VCC3V3_DCINOVP CKT

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4.1 Power Distribution Diagram

Figure 35. Power Distribution Diagram

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4.2 Power Supply CalculationEnter the device active percentage of utilization (1 to 100) to obtain the total power consumption.

Table 16. Power Supply Calculation

Device Part Number% Utilization

Current Consumption inmA (Maximum)

Current Consumption inmA (Typical)

Active 12V Rail 12V RailProcessor 66AK2Gxx 80 480.5495648 480.5495648

XDS200_Processor AM1802BZWTD3 50 29.87481972 29.87481972BMC_Processor TM4C129XNCZADI3 80 232.9411765 232.9411765

CPLD XC2C64A-5VQ44C 50 4.360465116 4.360465116DDR3 *5 MT41K512M8RH-125:E 80 205.5612403 195.3786625SDRAM MT48LC4M16A2B4-75G 50 50.87209302 33.91472868

Ehternet PHY KSZ9031RNXCA 50 28.74972222 28.74972222Buffer *2 SN74LVC32244ZKER 80 96.89922481 87.20930233

HDMI Transmitter SiI9022A CNU 80 31.1627907 24.9302325612.288-MHz Oscillator 12.288MHZ CFPS-73I B 50 3.63372093 2.90697674432.768-kHz Oscillator AS EK-32.768KHZ-LRT 50 0.566176471 0.275

Backlight Power TPS61081DRCT 50 43.60465116 35.12596899

LCD Module NHD-4.3-480272EF-ATXL-CTP 50 7.509689922 6.298449612

QSPI Flash S25FL512SAGMFI011 50 24.2248062 24.2248062DCAN *2 IS O1050 50 1.356589147 1.356589147

Audio Codec TLV320AIC3106IRGZT 50 2.00500646 2.00500646Level Translator TWL1200ZQCR 50 11.85077519 11.85077519I2C EEPROM AT24CM01 50 0.726744186 0.726744186

Clock Generator CDCM6208V2RGZT 80 116.0573333 83.11111111Clock Synthesizer CS2000CP-CZZ 50 5.559593023 2.906976744

DAC DAC8550IBDGKT 50 0.060562016 0.060562016VCXO E6718LF 50 1.453488372 1.453488372

USB-to-UART Module CP2105 50 4.481589147 4.481589147UART Transceiver *2 MAX3232ECD 50 0.484496124 0.145348837

UART Transceiver MAX3221CPWR 50 0.161764706 0.048529412SPI EEPROM M95512-RMN6TP 50 4.84496124 4.84496124NAND Flash MT29F2G16ABAEAWP-IT:E 80 13.56589147 11.62790698

eMMC EMMC16G-S100 80 68.65064599 68.65064599SPI Flash IS 25CD010-JNLE 50 7.26744186 3.63372093

BMC I2Cx Bus Repeater *2 TCA9517DGKR 50 4.040127679 2.42248062I2C Buffer Repeater TCA9517DGKR 50 1.21124031 1.21124031

LCD Module NHD-C12832A1Z-NSW-BBW-3V3 50 5.661764706 4.852941176

COM8 Module TPS79501DCQR 50 212.2416021 212.2416021USB — 50 244.6705426 243.4593023

PCIe Connector — 50 1504.166667 1181.9444448MLB Connector — 50 56.52777778 56.52777778

DCAN Connector *2 — 50 61.11111111 61.11111111Audio Daughter Card — 80 600.003876 480.003876

MicroSD Card — 80 31.00775194 31.00775194GPIO Expander TCA9555 50 38.75968992 38.75968992

Temperature Sensor TMP102 20 0.001453488 0.001453488LEDs ×7 — 50 16.95736434 16.95736434

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Table 17. Total Current and Power Consumption

Maximum MinimumTotal Current Consumption in mA 4255.397993 3714.144867Total Power Consumption in mW 51064.77591 44569.73841

4.3 Power-Up SequenceThe power-up sequence for the EVM, shown in Figure 36, is provided by the PMIC. This sequence isconsistent with the power sequence requirements for the 66AK2Gx found in the data manual. The Powerinput to the PMIC is enabled by the BMC. The BMC is powered on as soon as the board is powered on.The firmware flashed in the BMC enables power to the PMIC.

Figure 36. Power-Up Sequence Diagram

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5 Booting

5.1 Boot Mode SelectionThe DIP Switch/Boot mode switch (SW3) is used for selecting the boot mode. The Boot modeconfigurations are given in Section 7.3.

5.2 Matrix DemonstrationsTo boot Linux images and run matrix demonstrations on the board, follow these instructions:1. Set DIP switch (SW3) to 0111 (MSB first), as shown, to select MMC/SD boot mode.

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2. Insert the SD card.

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3. Using the Ethernet cable, connect the EVM to a network containing a PC running a DHCP server.

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4. Connect 12V power cable to the DC power jack (J3). Slide the power switch SW1 to the ON positionmarked on the silkscreen. LED LD9 lights.

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5. Note the IP address displayed on the LCD screen. Enter this address into a web browser connected tothe same network as the EVM.

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6. The host PC connects to the EVM, and the demonstration may now be run.

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6 Connector DescriptionsThe EVMK2G board has several connectors that provide access to various interfaces on the board, aslisted in Table 18 and shown in Figure 37.

Table 18. EVMK2G Board Connectors

Connector Part Number Pins FunctionJ1 548190519 7 Mini USB B-Type for XDS200J2 MEC6-150-02-S-D-RA1-TR 100 COM8 connectorJ3 RAPC722X 3 DC Power input jack connectorJ5 10061913-100CLF 38 PCI Express connectorJ19 QSH-030-01-L-D-A 60 MIPI 60 -pin SoC JTAG connectorJ21 68610614122A 8 Touch Screen connectorJ22 62684-401100ALF 40 LCD connectorJ23 54819-0572 9 Mini USB B-Type for CP2105J31 LPJG16314A4NL 16 RJ45 Ethernet connector

J32, J33 SJ-3524-SMT-1 4 Audio Line In and Line Out connectorsJ34 QSH-020-01-L-D-DP-A 44 MLB connectorJ35 87583-2010BLF 6 USB Type A - HostJ36 10029449-001RLF 23 HDMI connectorJ37 DM3AT-SF-PEJM5 14 SD/MMCJ38 ZX62-AB-5PA(11) 8 USB Micro for Dual RoleP1 182-009-113R531 11 UART0 Over DB9

P2, P3 182-009-113R531 11 DB9 connectors for DCAN0 and DCAN1

6.1 DC Jack (J3)The EVMK2G is powered by inserting the 12V-DC adapter into this power jack.

6.2 Mini USB for On-board XDS (J1) and CP2105 (J23)The EVMK2G has 2 mini USB connectors. J1 is for on-board XDS200 circuit. J23 is for SoC UART0 andBMC console over USB.

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J2

P2

J21

J19

J5 J3

P3

P1

J23

J22 J36 J34 J31 J38 J35 J37 J1 J32 J33

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Figure 37. EVMK2G Board Connectors

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6.3 COM8 (J2)The EVMK2G has a COM8 connector for interfacing to TI WiLink 8 modules. The pin out is given inTable 19.

Table 19. COM8 (J2) Pin List

Pin Description Pin Description Pin Description Pin Description1 COM_SLOW_CLK 26 COM_SDIO_D0 51 NC 76 COM_BTUARTDEBUG2 DGND 27 NC 52 COM_AUD_CLK 77 DGND3 DGND 28 COM_SDIO_D1 53 NC 78 COM_GPIO94 COM_WL_RST 29 NC 54 COM_AUD_FSYNC 79 NC5 VCOM_BAT 30 COM_SDIO_D2 55 NC 80 NC6 DGND 31 NC 56 COM_AUD_IN 81 NC7 VCOM_BAT 32 COM_SDIO_D3 57 NC 82 NC8 V1_8D 33 NC 58 COM_AUD_OUT 83 DGND9 DGND 34 COM_WL_IRQ 59 NC 84 NC10 NC 35 TP17 60 DGND 85 NC11 COM_WL_RS232_TX 36 NC 61 NC 86 NC12 NC 37 DGND 62 TP14 87 DGND13 COM_WL_RS232_RX 38 NC 63 NC 88 NC14 NC 39 TP18 64 DGND 89 COM_BTRST15 COM_WL_UART_DBG 40 NC 65 NC 90 NC16 NC 41 NC 66 COM_BTUARTTX 91 NC17 NC 42 DGND 67 NC 92 DGND18 DGND 43 NC 68 COM_BTUARTRX 93 NC19 DGND 44 NC 69 NC 94 NC20 COM_SDIO_CLK 45 NC 70 COM_BTUARTCTS 95 DGND21 NC 46 NC 71 NC 96 COM_GPIO1122 DGND 47 DGND 72 COM_BTUARTRTS 97 DGND23 NC 48 TP15 73 NC 98 COM_GPIO1224 COM_SDIO_CMD 49 NC 74 NC 99 NC25 NC 50 TP16 75 NC 100 COM_GPIO10

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6.4 PCI Express (J5)The EVMK2G has x1 PCI express interface to connect PCIe add-on cards. The pin out is given inTable 20.

Table 20. PCI Express (J5) Pin List

Pin Description Pin DescriptionA1 PRSNT# B1 VCC12V0A2 VCC12V0 B2 VCC12V0A3 VCC12V0 B3 VCC12V0A4 GND B4 GNDA5 GND B5 SCLA6 TDI B6 SDAA7 NC B7 GNDA8 TMS B8 VCC3V3A9 VCC3V3 B9 GNDA10 VCC3V3 B10 VCC3V3A11 CON_PORz B11 WAKEnA12 GND B12 NCA13 CLKP_HCSL_100MHz B13 GNDA14 CLKN_HCSL_100MHz B14 PCIe_TXN0A15 GND B15 PCIe_TXP0A16 RXN0 B16 GNDA17 RXP0 B17 PRSNT1#A18 GND B18 GNDSH1 PCIe_GND SH2 PCIe_GND

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6.5 JTAG MIPI-60 (J19)The EVMK2G has an MIPI connector for JTAG communication to the SoC through an external emulator.The pin out is given in Table 21.

Table 21. JTAG MIPI-60 (J19) Pin List

Pin Description Pin Description Pin Description1 VCC 21 EMU01 41 EMU132 TMS 22 NC 42 NC3 TCK 23 EMU04 43 EMU144 TDO 24 NC 44 NC5 TDI 25 EMU05 45 EMU156 MIPI_JTAG_RESET 26 NC 46 NC7 RTCK 27 EMU06 47 EMU168 TRST 28 NC 48 NC9 NC 29 EMU07 49 EMU1710 NC 30 NC 50 NC11 NC 31 EMU08 51 EMU1812 VCC 32 NC 52 NC13 EMU02 33 EMU09 53 EMU1914 NC 34 NC 54 NC15 GND 35 EMU10 55 NC16 GND 36 NC 56 NC17 EMU03 37 EMU11 57 GND18 NC 38 NC 58 VCC19 EMU00 39 EMU12 59 NC20 NC 40 NC 60 NC

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6.6 LCD (J22) and Touch Screen (J21)The EVMK2G has a 40-pin FPC LCD and a 6-pin touch screen connector. A 4.3-inch LCD can beconnected to the EVM through the connectors shown in Figure 38. The pin out is given in Table 22.

Figure 38. LCD (J22) and Touch Screen (J21) Connectors

Table 22. LCD (J22) and Touch Screen (J21) Pin List

LCD Connector (J22) Touch Screen Connector (J21)Pin Description Pin Description1 LED- 1 VDD2 LED+ 2 GND3 GND 3 CLK4 VDD 4 DATA

5-12 R0-R7 5 TOUCH INTERRUPT13-20 G0-G7 6 RESET21-28 B0-B7

29 GND30 CLK31 DISP32 HSYNC33 VSYNC34 DE35 NC36 GND37 NC38 NC39 NC40 NC

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The LCD connection procedure is:1. Lift the tab of the connectors J22 and J21.2. Safely insert the LCD and Touch Flex cables. Make sure the cables are correctly fitting in the

connector.3. Close the tab.4. Install the brackets.

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6.7 RJ45 Ethernet (J31)The EVMK2G has one RJ45 connector with magnetics for Ethernet interface. It is connected to theEthernet PHY Transceiver through parallel termination. The pin out is given in Table 23.

Table 23. RJ45 Ethernet (J31) Pin List

Pin Description1 GND2 NC3 Data3_P4 Data3_N5 Data2_P6 Data2_N7 Data1_P8 Data1_N9 Data0_P10 Data0_N11 VDD12 LED_ACTn13 LED_Linkn14 VDD15 GND16 GND

6.8 Stereo Analog Audio Input (J32) and Output (J33)The EVMK2G has two 3.5-mm female stereo jacks that are connected to the AIC3106 Audio Codec:• Line In: For connecting to the output of an mp3 player• Line Out: For connecting to headphones or speakers

Pin out details of Audio connector is given in Table 24.

Table 24. Stereo Analog Audio Input (J32) and Output (J33) Pin List

Line In Connector (J32) Line Out Connector (J33)Pin Description Pin Description1 GND 1 GND2 LEFT_IN 2 LEFT_OUT3 RIGHT_IN 3 RIGHT_OUT4 NC 4 NC

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6.9 MLB (J34)The EVMK2G has a single media local bus connector (QSH-020-01-L-D-DP-A) that is used for connectingthe MLB daughter card (Microchip’s OS81110). The pin out is given in Table 25.

Table 25. MLB (J34) Pin List

Pin Description Pin Description1 SIGN 21 NC2 MLBCLK 22 NC3 SIGP 23 NC4 NC 24 GPIO25 NC 25 Reset6 MLBSIG 26 NC7 NC 27 NC8 NC 28 NC9 DATDN 29 NC10 MLBDAT 30 NC11 DATDP 31 NC12 NC 32 NC13 NC 33 SCL14 NC 34 TP17915 NC 35 SDA16 TP174 36 NC17 PCLKN 37 VCC3V318 NC 38 VCC3V319 PCLKP 39 VCC3V320 NC 40 VCC12V0

6.10 USB0 Host Type A (J35)The EVMK2G has a USB Type A connector as host. The pin out is given in Table 26 .

Table 26. USB0 Host Type A (J35) Pin List

Pin Description1 VDD2 D-3 D+4 ID Pin to GND5 USB0_GND6 USB0_GND

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6.11 HDMI (J36)The EVMK2G has an HDMI out where it can be used to connect to the HDMI monitor via cable. It is a 23-pin Type A Receptacle connector. The pin out is given in Table 27.

Table 27. HDMI (J36) Pin List

Pin Description1 HDMI_TX2+2 GND3 HDMI_TX2-4 HDMI_TX1+5 GND6 HDMI_TX1-7 HDMI_TX0+8 GND9 HDMI_TX0-10 HDMI_CLK+11 GND12 HDMI_CLK-13 HDMICONN_CEC14 NC15 HDMICONN_I2CSCL16 HDMICONN_I2CSDA17 GND18 5V_OUT_HDMI19 HDMI_HP_OUT20 GND21 GND22 GND23 GND

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6.12 MMC/SD (J37)The MMC/SD card holder is located on the top side of the board and is used to provide an interface to aMMC/SD card. It is a 14-pin MMC/SD card holder. The pin out is given in Table 28.

Table 28. MMC/SD (J37) Pin List

Pin Description1 DAT22 CD/DAT33 CMD4 VDD5 CLOCK6 VSS7 DAT08 DAT19 CD110 SDCD_GND11 SDCD_GND12 CD213 SDCD_GND14 SDCD_GND

6.13 USB1-Micro (J38)The EVMK2G has a micro-USB connector as USB1 dual role. The pin out is given in Table 29.

Table 29. USB1-Micro (J38) Pin List

Pin Description1 VDD2 D-3 D+4 ID5 GND6 USB0_GND7 USB0_GND8 USB0_GND9 USB0_GND

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6.14 DB9 Connector (P1, P2, and P3)The EVMK2G has three DB-9 connectors. DB9 connector (P1) is connected to the SoC UART0 throughthe RS-232 Transceiver. Two DB9 connectors (P2 and P3) are used for DCAN0 and DCAN1, respectively,connected to the SoC through the CAN transceiver. The pin out is given in Table 30.

Table 30. DB9 Connector (P1, P2, and P3) Pin List

P1 Connector P2 and P3 ConnectorsPin Description Pin Description1 NC 1 NC2 RXD 2 CANL3 TXD 3 CAN_GND4 NC 4 NC5 GND 5 CAN_GND6 NC 6 CAN_GND7 NC 7 CANH8 NC 8 NC9 NC 9 VCAN10 Shield_GND 10 Shield_GND11 Shield_GND 11 Shield_GND

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SW12

SW15

SW14 & SW13

Tactile Switches

SW3 SW11

SW1

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7 Switch DescriptionsThe EVMK2G has a total of 15 switches (Figure 39):• 1 Sliding switch for Powering on the board• 8 Tactile switches for various Reset, PMIC Power on, VOL+, VOL-• 1 DIP slide switch for boot mode configuration• 5 DIP SPST switches for enabling various interfaces

Figure 39. EVMK2G Switches

7.1 Slide SwitchThe EVMK2G has one sliding switch/Power switch (SW1) for powering ON/OFF the board.

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7.2 Tactile SwitchThe EVMK2G has 8 tactile switches. Pressing each performs different functions. Switches and theircorresponding functions are listed in Table 31.

Table 31. EVMK2G Tactile Switches

Switch Function DescriptionSW2 VOL+ Currently not implementedSW4 VOL- Currently not implementedSW5 PWRON_RSTz Power-on ResetSW6 BMC_RESETz Pressing this switch resets the BMCSW7 ATTENTIONz Currently not implementedSW8 PMIC_HDRST PMIC Hard ResetSW9 PMIC PWRON PMIC Power onSW10 WARMRSTz Warm Reset

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7.3 DIP SwitchThe DIP Switch/Boot mode switch (SW3), shown in Figure 40, is used for selecting the boot mode. TheBoot mode configurations are given in Table 32.

Figure 40. DIP (SW3) Switch

Table 32. Boot Mode Configurations for SW3

SW3 Setting (MSB first) Boot Mode0000 Sleep/No Boot0001 PCIe Boot0010 Ethernet Boot0011 I2C PLL Boot0100 SPI No PLL Boot0101 SPI PLL-1 Boot0110 USB Boot0111 MMC/SD Boot1000 UART Boot1001 QSPI 96 Boot1010 eMMC Boot1011 NAND Boot1100 I2C No PLL Boot1101 SPI PLL-2 Boot1110 SPI PLL-3 Boot1111 QSPI 48 Boot

7.4 DIP SPST SwitchThe DIP SPST switches on the board are used for enabling and disabling various interfaces. Switch andtheir functions are:• Audio Switch: Audio switch (SW15) is to enable the Audio buffer.• COM8 Switch: The COM8 switch (SW11) is to Enable/Disable COM8 Buffer.• LCD/HDMI Selection Switches: The LCD and HDMI selection switches (SW14 and SW13) is to select

between the LCD or the HDMI. In both OFF condition, the LCD will be functioning. In the ON condition,the HDMI will be functioning.

• UART0 over USB/DB9 Switch: This switch (SW12) is used to enable UART0 over USB. In the ONcondition, UART0 is over DB9 connector. In the OFF condition, UART0 is over USB.

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8 EVM Board Physical SpecificationsThis section describes the physical layout of the EVMK2G board and its connectors, switches, and testpoints.

NOTE: The EVMK2G does not come with an LCD Touchscreen display, it should be purchasedseparately.

8.1 Mounting of LCD and Spacers

CAUTIONMount the spacers and screws while unpacking the EVM from the package box.Without the spacers, damage may occur to the board or bottom assembledcomponents.

Figure 41 shows the mechanical diagram to mount the LCD and the spacers. The EVMK2G Kit containsthe following parts for assembling the LCD and the spacers:• Spacers• Screws• Rubber feet• Brackets for 4.3’’ LCD

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Figure 41. EVMK2G Mechanical Drawing

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8.2 Board LayoutThe EVMK2G board dimension is 12’ × 9.60’’ (305mm × 244mm). It is a 10-layer board and poweredthrough connector J3. The top and the bottom layout views of the EVMK2G are provided in Figure 42 andFigure 43, respectively.

Figure 42. EVMK2G Board Assembly Layout - Top View

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Figure 43. EVMK2G Board Assembly Layout - Bottom View

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8.3 System LEDsThe EVMK2G has 13 LEDs. The description of each LED is given in Table 33 and shown in Figure 44.

Table 33. EVMK2G Board LEDs

LED Color DescriptionLD1 Yellow SoC_LED1LD2 Yellow SoC_LED3LD3 Yellow SoC_LED0LD4 Yellow SoC_LED2LD5 Yellow SoC_LED4LD6 Green XDS Power LEDLD7 Green EMULED1. Glows after XDS is flashedLD8 Green EMULED2. Glows when XDS connects with SoCLD9 Green Board Power (12V) ON Indication LEDLD10 Green SOC_PLL_LOCKLD11 Blue Glows after BMC is programmedLD12 Green BMC_GREEN_LEDLD13 Blue SOC_RESETSTATzLD14 Red Fault indicationLD15 Red Reverse Voltage detection

8.4 Design Files• K2G EVM Production Assembly Drawing (SPRR297)• K2G EVM Production CAD Gerber Files (SPRR298)• K2G EVM Production CAD (SPRR299)• K2G EVM Production Bill of Materials (BOM) (SPRR301)• K2G EVM Production Schematic (SPRR302)

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LD13

LD10

LD3

LD1

LD4

LD2

LD5

LD11

LD12

LD9

LD15

LD14

LD6

LD7

LD8

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Figure 44. EVMK2G Board LEDs

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Optical / CoaxialSelection switch

ADC_IN 0

DAC_OUT 0

Digital Audio IN

(Optical)

Digital AudioIN

(Coaxial)

Digital AudioOUT

OPAMPPower Module

DAC0Mute Switch

I2S Buffer SelectionSwitch

I2S Header

DAC1 MuteSwitch

ADC_IN 1

ADC_IN 2

ADC_IN 3

DAC_OUT 1

DAC_OUT 2

DAC_OUT 3

DAC_OUT 4

DAC_OUT 5

DAC_OUT 6

DAC_OUT 7

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9 EVM with Audio Daughter CardThe K2G Audio Daughter Card (Figure 45) allows you to prototype and develop multichannel audioapplications, such as A/V receivers, automotive amplifier systems, and mixing consoles. The AudioDaughter Card connects to the main card by way of the Audio Expansion Connector. The K2G AudioDaughter Card provides:• 8 channels of analog input• 16 channels of analog outputs• S/PDIF input (optical/coaxial)• S/PDIF output

Figure 45. K2G Audio Daughter Card

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DAC x 2

Switch

I2S Header

Audio E

xpansion Header

McASP1AXR[0:3]

McASP0AXR[0:7]

ADC x 2(PCM1865)

Digital Audio Receiver(DIR9001)

McASP2AXR[5]

McASP1AXR[9] Digital Audio OUT

Coaxial RCA Connector

I2C

GPIO[0,1]

McASP0AXR[0:15]

Stereo IN (x4)3.5mm Jack

Stereo OUT (x4)3.5mm Jack

Digital Audio IN

Optical Connector

Line Driver(SN74LVC2G14)

Digital Audio IN

Coaxial RCA Connector

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9.1 K2G Audio Daughter Card Block Diagram

Figure 46. K2G Audio Daughter Card Block Diagram

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J64JP1

J63J12

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9.2 EVM with Audio Daughter Card ConnectionsPerform the following procedure to connect the K2G Audio Daughter Card to the K2G general-purpose(GP) EVM, see Figure 47.

CAUTIONFollow the mechanical instructions to avoid warpage to both boards.

Mount the spacers and screws while unpacking the K2G Audio Daughter Cardfrom the package box. Without the spacers, damage may occur to both boards.

Figure 47. Connecting the K2G Audio Daughter Card

1. Mount the Audio Daughter Card onto the K2G GPEVM:• Align the pins of the Audio Daughter Card (connectors J63 and J64) with the main card

(connectors J12 and JP1), respectively. Press gently to mate the connectors at the corners.

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• Press the Audio Daughter Card connectors in the middle carefully to ensure mating at the center.

• Apply pressure on the middle and the sides evenly to ensure proper mating of the connectors.

2. The board looks, as shown, after mating the K2G GP EVM and Audio Daughter Card.

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Input(12 V / 5 A)

PoweredSpeakers

Switch SW1

AnalogOutput

Analog inputfrom media

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3. Powering the K2G Audio Daughter Card. The K2G Audio Daughter Card is powered from the K2G GPEVM through the expansion connectors.• After mounting the Audio Daughter Card and connecting all audio sources/speakers, connect the

12V/5A adapter to connector J3 on the main board.• Slide the switch SW1 on the GP EVM to the ON position.• Once the GP EVM has booted, it is safe to turn ON any powered speakers.

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10 EVMK2GXS Secure EVMA socketed version of the EVMK2G is available for the development of software to support a secureversion of the K2G.

Figure 48. Ironwood Socket

10.1 Removing and Installing a K2G in the SocketThe Ironwood Socket shown in Figure 48 allows for the installation and removal of K2G components.Caution must be taken to install the component correctly, or damage to the EVM may result. The EVMarrives with the socket mounted to the board and a K2G installed. The socket consists of a base, a lid, acompression screw, a compression plate, and an IC frame. In addition, a vacuum pen is needed toremove the K2G, and a torque wrench to set the correct compression during the installation of the K2G.

Use the following steps to remove the K2G:1. Disconnect the power supply from the EVM.2. Loosen the compression screw until the lid can be rotated. It is not necessary to remove the

compression screw from the lid.3. Rotate the lid counter-clockwise until the heads of the shoulder screws are aligned with the round

openings in the lid. The shoulder screws are permanently fixed in place and do not need to betightened or loosened.

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4. Lift of the lid with the compression screw and set it aside. This exposes the compression plate.5. Lift off the compression plate and set it aside. This exposes the K2G with the IC frame.6. Use the vacuum pen to carefully remove the K2G. Note the correct A1 orientation of the part.7. Remove the IC frame and set it aside.

Use the following steps to install a K2G:1. Disconnect the power supply from the EVM.2. Use a vacuum pen to install the K2G in the base. Align the A1 pin correctly in the socket. Check that

the component is level and not leaning on any side of the base.3. Place the IC frame on the K2G. The IC frame provides an even compression across the K2G.4. Place the compression plate on top of the K2G so that it is sitting flat on the top of the component.5. Align the lid so that the holes for the shoulder screws are over the screw heads. Lower the lid over the

screw heads and rotate the lid clockwise to the end of the guides. The edge of the lid should bealigned with the base.

6. Use a torque wrench to tighten the compression screw, slowly applying pressure to the K2G. Thetorque wrench should be set to 80 in-oz to provide the correct pressure. Continue to tighten thecompression screw until the correct torque has been applied. Do not over-torque the compressionscrew. Applying a torque greater than 80 in-oz will damage the socket and the installed K2G.

10.2 Initial Use of a Socketed BoardOccasionally, a socketed board does not boot correctly when it is first received. During shipping, thesocket may loosen or the K2G may shift, compromising the connection between the component and theboard. If this occurs, follow the steps above to remove and reinstall the component.

11 EVM Important NoticeRefer to the STANDARD TERMS AND CONDITIONS FOR EVALUATION MODULES.

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Revision History

Revision HistoryNOTE: Page numbers for previous revisions may differ from page numbers in the current version.

Changes from Original (April 2016) to A Revision .......................................................................................................... Page

• Updated Title. .............................................................................................................................. 7• Updated About This Manual section. ................................................................................................... 7• Added EVMK2GXS Secure EVM section............................................................................................. 79

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