1. S. Durkin, CMS EMU Meeting U.C. Davis Feb. 25, 2005 1 DMB Production 8-layer PC Board, 2 Ball-Grid Array FPGA’s, 718 Components/Board 550 Production Boards

2. S. Durkin, CMS EMU Meeting U.C. Davis Feb. 25, 2005 2 DMB Production Boards - 411/550 boards delivered/tested - 70 boards required repair Board are being boxed and stored until needed at Ohio State Production Schedule

3. S. Durkin, CMS EMU Meeting U.C. Davis Feb. 25, 2005 3 New Crate Controller Development A VMEbus Controller with Gigabit Ethernet –A custom board designed and developed at OSU –Based on XILINX Virtex-II Pro –Custom firmware. –Optical transceiver (for Gbit Ethernet) –Communicates with stand-alone PC (in USC55) via Gigabit Ethernet It’s Alive ! Measured: Continuous Read/Write VME Transfers at 120 Mbit/s

4. S. Durkin, CMS EMU Meeting U.C. Davis Feb. 25, 2005 4 Dest Addr | SRC Addr | PktLen PktType | NVME Cntrl | VME Addr | Data Cntrl | VME Addr Cntrl | VME Delay Gigabit-VME Ethernet Protocol Utilize Commercial Software (Drivers) Ethernet Raw Socket Layer (requires setuid();) Packet to Controller:  Ethernet Header Private Protocol Header VME Write 1 VME Read 2 VME Delay 3 VME Write 4 14 bytes 4 bytes 8 bytes 6 bytes 4 bytes 8 bytes Packet from Controller: Ethernet Header Private Rcv. Header Data from VME … Dest Addr | SRC Addr | PktLenPktType | RSVD | NWrdsData  14 bytes 6 bytes 2 bytes 2 bytes … Cntrl | VME Addr | Data Note: Jumbo Packet Support 9000 bytes

5. S. Durkin, CMS EMU Meeting U.C. Davis Feb. 25, 2005 5 Controller Production Schedule New Controller has Run in DDU/DCC Crate for 1 Month - Very Stable, No Bus Hangs or Resets Needed Yet! - 2 nd prototype/preproduction board TBD (some changed components, layout fixes, and form factor change) - Radiation Tests Need to be Performed Firmware Additions Needed: - Storage of MAC Address in Flash RAM - Controller Handshake for Overflow Protection - JTAG interface for reprogramming PROM via ethernet Production Schedule

6. S. Durkin, CMS EMU Meeting U.C. Davis Feb. 25, 2005 6 DDU Prototype Functions –Merge data from 13 DMBs –Perform error checking and status monitoring (CRC, word count, L1 number, BXN, overflow, link status) –Communicates w/FMM Large Buffer Capacity –2.5 MB buffer –Average DDU data volume estimated to be 0.4kB per L1A at LHC (@10 34 lumi) –Buffer can hold over 6000 events TTC signals from DCC Slow control via VME SLINK Mezz Board Optical Fiber Input (15) GbE To Local DAQ Input FIFOs Input FPGA GbE FIFO Main FPGA VME FPGA FMM output port

7. S. Durkin, CMS EMU Meeting U.C. Davis Feb. 25, 2005 7 DCC Prototype Data Concentration –Merge data from 9 DDUs –send merged data to central DAQ via 1 or 2 SLINKs –Has two optional GbE spy data path Fast Control –Receive TTC fiber signals using TTCrx, –Fanout L1A, LHC_clock and other TTC signals to DDUs –Has optional FMM interface J1 backplane SLINK TTCrx SLINK Control FPGA Output FIFOs Input FIFOs Input FPGAs VME DDU data

8. S. Durkin, CMS EMU Meeting U.C. Davis Feb. 25, 2005 8 DDU/DCC Prototype DDU/DCC TestBeam 2004 - very successful, no problem for > 10x LHC rate Both DDU/DCC Passed ESR Nov. 2004 DDR FIFO bit errors – bad chip used on DDU/DCC/Controller (72T40/20 family) FIFO LFSR parity Q[39:20] Q[19:0] Din[19:0] D[19:0] D[39:20] COMP Error report FIFO Write/read Qout[19:0] Qout[39:20] IDT72T40118, 40-bit 0.5MByte, DDR FIFO bit errors, esp. bit 21 Detailed test on test board Error shown on DDU and VME_controller (DDR FIFO) Still working with IDT Replacement: TI SN74V3690 IDT 72V36110

9. S. Durkin, CMS EMU Meeting U.C. Davis Feb. 25, 2005 9 DDU/DCC Production Relayout Both DDU and DCC ( * : pre-production boards) Production Schedule optional baseline CONTROLLERCONTROLLER DDUDDU DCCDCC DDUDDU DDUDDU DDUDDU DDUDDU DDUDDU DDUDDU DCCDCC DDUDDU DDUDDU Detector Dependent Unit (DDU) 9/crate, 50 will be built Data Concentration Card (DCC) 1 or 2/crate, 10 will be built