Data Collection Module (DCM) (review, fabrication plan & chain test)

Data Collection Module (DCM)(review, fabrication plan & chain test) • DCM team • Cheng-Yi Chi ( DCM, TOF FEE, BB FEE) • Jamie Nagle (DCM) • Bill Sippach (DCM, TOF FEE, BB FEE) • Herb Cunitz (DCM, TOF FEE, BB FEE) • Li Zhang (DCM, TOF FEE, BB FEE) June 10, 98 FEE Review Cheng-Yi Chi

DCM Functions • Zero-suppress FEM data • Receive Level-1 trigger primitives • Apply calibration constants • Error and alignment checking / handling • Re-format data to the Event Builder • Data Monitoring / Histogramming / Calibration • First Stage of the event building • Generating higher level trigger primitives • Provide FEM data buffer June 10, 98 FEE Review Cheng-Yi Chi

DCM Block Diagram June 10, 98 FEE Review Cheng-Yi Chi

DCM Crate June 10, 98 FEE Review Cheng-Yi Chi

Data Collection Module (DCM) VME64X Backplane Zero-Suppression Daughter Card LVL-1 Input Fiber Connection SHARC DSP 9-15-97 C.Y. Chi, J.L. Nagle Columbia University Data Flow through DCM June 10, 98 FEE Review Cheng-Yi Chi

Data Collection Module Heat Transfer Plate VME 64X Handler SHARC DSP Zero Suppression Daughter card June 10, 98 FEE Review Cheng-Yi Chi

Partitioner Data flow control FPGA includes VME block read buffer ALTERA EPF10K40 FIFO’s Event Dataflow To sub-event buffer Busy From L1 L1 Primitives June 10, 98 FEE Review Cheng-Yi Chi

DCM Final Design Review • Final design Review (Jan. 29 1998) • (John Haggerty, Glenn Young, Chris Witzig, Paul Stankus, Edmond Desmond, Seymour Rankowitz) • Important actions from FDR • additional few pull-down resistors added on to token-passing timing/control lines on DCM (fixed problems for the first modules in the token chain) • 5th DSP on the DCM module will be 4 Mbits version of SHARC DSP, instead of 2 Mbits version (as requested by DCM team) June 10, 98 FEE Review Cheng-Yi Chi

Timing-FEM-DCM chain test • February 1998 TOF - DCM chain test (in Nevis) • April 1998 GTM-DC FEM-DCM • GTM-PC FEM-DCM Chain Test. • (~ 2 Days effort) • Julia Velkovska, Tom Hemmick, Chuck Pancake (Stony Brook), • Jamie Nagle (Nevis) • Joe Mead, Simon Durant (BNL) (Timing, ONCS) • Melissa Smith (ORNL) • Problems Found • DCM daughter card, Diode direction was reversed (frequency lock) • On GTM, reset had to be put in for initial GLINK fill frame transmission June 10, 98 FEE Review Cheng-Yi Chi

DCM Status • DCM compressor daughter cards are done • DCM main board is done (waiting for chain test with Partitioner card & backplane) • DCM Partitioner card testing is 80% done • Remaining goal is a chain test between the sub-event buffer and Partitioner June 10, 98 FEE Review Cheng-Yi Chi

DCM Fabrication Plan • Parts Order started at End of March. 90% of parts on hand now (including all DSP’s & Optical Transceivers) • Fabricating compressor daughter card PC boards • P.O. for daughter card assembler placed • Start DCM main board fabrication process later this month • We have two complete test stands at Nevis • Third one will be placed in PHENIX counting house ASAP • Project completion date before End of Year June 10, 98 FEE Review Cheng-Yi Chi

Data Collection Module (DCM) (review, fabrication plan & chain test)