1. GCT Leaf Card

2. Overview Based on existing double PMC board Based on existing double PMC board Satellite processor prototypeSatellite processor prototype Utilizes VirtexII and discrete SERDESUtilizes VirtexII and discrete SERDES Currently in use for jet finder algorithm developmentCurrently in use for jet finder algorithm development Modified design will use V2Pro Modified design will use V2Pro Embedded SERDES (Rocket I/O)Embedded SERDES (Rocket I/O) Commercial multi channel optical linksCommercial multi channel optical links Eight boards used for complete systemEight boards used for complete system Six jet, two electron Six jet, two electron

3. System Implementation (Jet) Data input Data input Accepts data from 3 RCT cratesAccepts data from 3 RCT crates 32 serial links at 1.6Gbps 32 serial links at 1.6Gbps Shares data with neighboring leafShares data with neighboring leaf Data flows in one direction Data flows in one direction Processing Processing Two Xilinx Virtex2Pro FPGAsTwo Xilinx Virtex2Pro FPGAs Virtex4FX devices not available yet Virtex4FX devices not available yet XC2VP70FF1513C XC2VP70FF1513C Three jet finders total Three jet finders total

4. System Implementation (electron) Data Input Data Input Accepts data from 9 RCT cratesAccepts data from 9 RCT crates No sharing requiredNo sharing required Processing Processing Two Xilinx Virtex2Pro FPGAsTwo Xilinx Virtex2Pro FPGAs XC2VP501513C XC2VP501513C Easily handles requirements Easily handles requirements Re-use of hardware less expensive than new designRe-use of hardware less expensive than new design

5. Block diagram XC2VP70FF1513CXC2VP701513C 12 channel optical links 200 pins 40MHz DDR 1244 1.6Gbps links 160 pins 80 LVDS pairs 160 pins 80 LVDS pairs 80 pins 40 MHz DDR 160 pins 40 MHz DDR 80 pins 40 MHz DDR

6. Design resources Based on Los Alamos design Based on Los Alamos design Double wide PMC developed for Lockheed Martin Space systemsDouble wide PMC developed for Lockheed Martin Space systems >60% of current design retained>60% of current design retained Los Alamos Team available Los Alamos Team available Contract in progressContract in progress Team has started workTeam has started work Division of labor Division of labor CERN provides schematic modificationsCERN provides schematic modifications Los Alamos checks design, lays out and fabricates prototypesLos Alamos checks design, lays out and fabricates prototypes

7. Current Status Schematics had been released Schematics had been released Algorithm testing identified logic capacity problemAlgorithm testing identified logic capacity problem Larger part required (V2P50 -> V2P70) Larger part required (V2P50 -> V2P70) Package change required Package change required Schematics need to be revised Schematics need to be revised Los Alamos aware of changeLos Alamos aware of change New symbols being builtNew symbols being built Cost impact ~$14K Cost impact ~$14K One week effort wastedOne week effort wasted New decoupling and part layoutNew decoupling and part layout Equivalent to 1.5 weeks fundingEquivalent to 1.5 weeks funding Included in most recent Contract proposalIncluded in most recent Contract proposal

8. Manpower and Schedule One person at CERN One person at CERN 3 months design (1/4 – ½ time)3 months design (1/4 – ½ time) Two at Los Alamos Two at Los Alamos 3 months layout (full time)3 months layout (full time) 1 month engineering (1/3 time)1 month engineering (1/3 time) 3 months to prototype order (ARO) 3 months to prototype order (ARO) 4 months to first hardware delivery4 months to first hardware delivery