José C. Da SilvaCMS Upgrade Workshop, FNAL, October 28, 2009

Preliminary design of the SSLB(“S” for SLHC)

sLHC upgrade meeting

José C. Da SilvaCMS Upgrade Workshop, FNAL, October 28, 2009

SLB – Functional Description

• Overall synchronization of the ECAL and HCAL trigger primitives.

• Transmission of the Trigger Primitives to the Calorimeter Regional Trigger.

José C. Da SilvaCMS Upgrade Workshop, FNAL, October 28, 2009

SLB – Functional Description

• Receives 9 bit data @ 40 MHz / TT

• Each SLB houses 8 TT

• Align Trigger Data using the LHC Orbit bunch structure to determine the BX position using internal histograms

• FIFO stage to compensate fiber length differences, deserialisers lock delays and to guarantee the alignment of data sent to the RT from both ECAL and HCAL.

• 2 TT data merging + Hamming code prior to send it over the high speed link

• 4 High speed links (1.2Gb/s each)

José C. Da SilvaCMS Upgrade Workshop, FNAL, October 28, 2009

SSLB details

• Maintain same connectivity and form factor

• Replace cables by optical links

• Latency budget increases in most cases when using FPGAs

• High speed link, 850/1310 nm, commercial package

• PCB for both ECAL/HCAL and RCT (duplex)

• FPGA Transceivers, deeper FIFO and Full Orbit histogram per

channel

• Stratix II or IV (GX) or Virtex 4 or 5 (6 arriving)

• SSLB (TX and RX)

José C. Da SilvaCMS Upgrade Workshop, FNAL, October 28, 2009

SSLB TPG side

90% JTAG Coverage

4 x 9 BITS BUS40.08 MHz

4 x 9 BITS BUS40.08 MHz

VITESSEctrl interface

TTC_rx CLK

Main Board Interface

HIGH SPEED

MERGER

PMC connectors

SYNC-S

SYNC

4 x 8 Bit BUS120.24 MHz Clock

RX_BCO

120.24 MHz Clock, 15 ps jitter

RX_CLK

PMC connectors

SYNC

mux

SYNC

SYNC

SLB-SController(Embedded )

EDC

EDC

SYNC-S

SYNC

SYNC

mux

SYNC

SYNC

mux

EDC

EDC

CLOCK Multiplier

mux

TTC BUS

Local_BUS

JTAG

4.8GB/sOptical Transceiver

José C. Da SilvaCMS Upgrade Workshop, FNAL, October 28, 2009

SSLB RCT side

90% JTAG Coverage

ctrl interface

ALIGN DATA

BLOCK

PMC connectors

PMC connectors

DE MUX

Controller(Embedded )

CLOCK Multiplier

4.8GB/sOptical Transceiver

RCT interface

José C. Da SilvaCMS Upgrade Workshop, FNAL, October 28, 2009

SSLB PCB Preview

José C. Da SilvaCMS Upgrade Workshop, FNAL, October 28, 2009

SSLB borders

RCTReceiver

Card

EE-TCC: EB-TCC:

EE EB borders

SLBAB

SLBCD

Hydra Cable2x(2x1.2Gb)

RCTReceiver

Card

EE-TCC: EB-TCC:

EE EB

SLBABCD

SLBABCD

Normal Cable4x1.2Gb

RCTReceiver

Card

José C. Da SilvaCMS Upgrade Workshop, FNAL, October 28, 2009

SSLB PCB Preview

José C. Da SilvaCMS Upgrade Workshop, FNAL, October 28, 2009

RCT

Calorimeter Trigger Evolution

RCT

GCT:Sources

GCT:Main GT/GMT

GCT/uTCA

ETCC:TPGs

HTR:TPGs

Cu

FO

RCT

GCT:Sources

GT/GMT

GCT/uTCA

uTCA-HTR:TPGs

SSLBRCT/

uTCA

GCT/uTCA

GT/GMT

ETCC:TPGs

uTCA-HTR:TPGs

SSLB

Step 1 (2009) Step 2(2010-2011)

RCT/uTCA

ETCC:TPGs

uTCA-HTR:TPGs

SSLB

Step 3 (>2011) Step 4 (>2012)

SSLBSSLB

GCT:Sources

GT/GMT

GCT/uTCA

SLBSLBSLB

SLB SLB

ETCC:TPGs

SLB

Matrix& AuxCards

José C. Da SilvaCMS Upgrade Workshop, FNAL, October 28, 2009

RCT

Calorimeter Trigger Evolution II

RCT

GCT:Sources

GCT:Main GT/GMT

GCT/uTCA

ETCC:TPGs

HTR:TPGs

Cu

FO

RCT

GCT:Sources

GT/GMT

GCT/uTCA

uTCA-HTR:TPGs

SSLBRCT/

uTCA

GCT/uTCA

GT/GMT

ETCC:TPGs

uTCA-HTR:TPGs

SSLB

Step 1 (2009) Step 2(2010-2011)

RCT/uTCA

ETCC:TPGs

SSLB

Step 3 (>2011) Step 4 (>2012)

SSLBSSLB

GCT:Sources

GT/GMT

GCT/uTCA

SLBSLBSLB

SLB SLB

ETCC:TPGs

SLB

Matrix& AuxCards

uTCA-HTR:TPGs

José C. Da SilvaCMS Upgrade Workshop, FNAL, October 28, 2009

Conclusions

• Use a single design for the new SLB , with Optical Transceivers

• Both connectors footprints

• Maintain modularity for compatibility with existing design

• LIP will take the responsibility of this design