DAQ Interface for uTCA E. Hazen - Boston University for the CMS Collaboration 2012-01-25 E. Hazen -- Electronics Week

E. Hazen -- Electronics Week AMC13 Hardware Tongue 3 PCB (optional, for initial programming) (4) SFP+ Sites 1 for TTC (160Mb) 3 for DAQ/etc 6.2Gb Atmel AVR-32 uC MMC Functions Micro USB MMC serial console Tongue 2 PCB Tongue 1 PCB Spartan 6 FPGA Fabric B TTC distribution Firmware management interface to MMC Virtex-6 LX130T FPGA DAQ Functions, buffering 6Gb links to backplane, SFP JTAG Headers MMC programming FPGA programming 2012-01-25 E. Hazen -- Electronics Week

E. Hazen -- Electronics Week AMC13 in DAQ test crate DAQ Output TTC In / TTS Out 2012-01-25 E. Hazen -- Electronics Week

MicroTCA Interface to CMS (Interim) 2012-01-25 E. Hazen -- Electronics Week

MicroTCA Interface to CMS (Ultimate?) 2012-01-25 E. Hazen -- Electronics Week

Prototype Link Requirements Transfer data at line speed Survive 10-10 BER (~ 1 error/sec) with negligible loss in throughput and error rate. Provide low-bandwidth return channel for link monitoring, or other purposes Easy to implement in commodity FPGAs Simple enough to describe in 1 slide! (maybe 3 ) 2012-01-25 E. Hazen -- Electronics Week

Prototype DAQ Link Firmware (Emulates SLINK-64) DAQLSC.vhd DAQLDC.vhd GTX GTX SysClk LinkClk LinkWe LinkRe LinkCtrl LinkWe 64 LinkData LinkCtrl LinkAlmostFull 64 LinkDown LinkData 16 LinkDown SrcID 16 Src_ID 16 Addr 64 Status 2012-01-25 E. Hazen -- Electronics Week

Prototype DAQ Link Format Data rate = 5.0 Gb/s 2012-01-25 E. Hazen -- Electronics Week

Some more protocol details... LSC sends init packet with Link ID, waits for ACK LSC breaks data into 4k packets Send up to ~ 4 packets, wait for ACK If ACK seen, delete packet from queue If no ACK in 215 bit periods (65 us), re-send last non-acknowledged packet LDC receives packets, checks CRC, ACKs correctly- formed packets. No ACK sent if packet has error No ACK send if Rx buffer is full 2012-01-25 E. Hazen -- Electronics Week

E. Hazen -- Electronics Week Status and Plans Implement receiver for 5Gb/s link in MOL (underway!) Test and discuss/modify protocol Implement DAQ for HCAL Receive data from AMC cards (see backup slides) Transmit to MOL (can receive in AMC13 and readout over Ethernet in interim) Establish specifications for 10Gb/s link and start development of next gen AMC13 2012-01-25 E. Hazen -- Electronics Week

E. Hazen -- Electronics Week Backup Slides 2012-01-25 E. Hazen -- Electronics Week

TTC / Clocks Note: no TTCrx ASIC required! 2011-11-08 E. Hazen -- Upgrade Week

Backplane Links 2011-11-08 E. Hazen -- Upgrade Week AMC Modules (uHTR / MiniCTR) 12 point-to-point links AMC13 (DTC) BU provided firmware 160MHz Biphase mark Fabric B TTC Receiver LHC clock L1A IO IO BC0 etc 2.5Gb/s 8b/10b Fabric A Level 1 Trigger MUX TP[0:7] BC0 MGT MGT CLK Level 2 DAQ 16 Data Framing Buffer Status 2011-11-08 E. Hazen -- Upgrade Week