1. Tony Gillman ASSO - 16 October 2001 ASSO - Level-1 Calorimeter Trigger Cluster and Jet/Energy Processors l Overview l Deliverables l Programme organisation l Infrastructure l Interfaces - Input l Interfaces - Output l Schedule - Milestones l Quality Assurance l Recent results

2. Tony Gillman ASSO - 16 October 2001 ASSO - Level-1 Calorimeter Trigger Overview

3. Tony Gillman ASSO - 16 October 2001 ASSO - Level-1 Calorimeter Trigger Deliverables - (1) l Cluster Processor:  searches for signatures of high-p T e/  and  /hadrons  calculates total multiplicity of e/  and  /hadron “objects” ãprovides Region of Interest (RoI) information to Level-2 Trigger ãmonitors incoming and outgoing data from Level-1 ACCEPTs (to DAQ) l Jet/Energy Processor: ãsearches for signatures of high-E T jets ãcalculates total multiplicity of jets and forward jets ãcalculates missing E T, total scalar E T and total jet E T ãprovides Region of Interest (RoI) information to Level-2 Trigger ãmonitors incoming and outgoing data from Level-1 ACCEPTs (to DAQ)

4. Tony Gillman ASSO - 16 October 2001 ASSO - Level-1 Calorimeter Trigger Deliverables - (2) l Hardware: ãCluster Processing Module (CPM) ~65 modules ãJet/Energy Module (JEM) ~40 modules ãCommon Merger Module (CMM) ~15 modules ãTiming Control Module (TCM) ~20 modules ãReadOut Driver module (ROD) ~25 modules ãProcessor Backplane (PB) ~10 modules ãSerial Link cable system ~2000 cables ã9U VME crates (commercial) ~10 crates ãVME Processor (commercial) ~10 modules l Software: ã???

5. Tony Gillman ASSO - 16 October 2001 ASSO - Level-1 Calorimeter Trigger Programme Organisation l Cluster Processor - UK ãCPM (hardware) - Birmingham University ãAlgorithms/Software - Birmingham University, QM London, RAL l Jet/Energy Processor - Germany and Sweden ãJEM (hardware) - University of Mainz ãAlgorithms/Software (Jet triggers) - University of Stockholm ãAlgorithms/Software (Energy triggers) - University of Mainz l “Common” items ãCMM - RAL ãTCM - RAL ãROD - RAL ãPB - University of Stockholm ãSerial Link cable system - CP/JEP Institutes (shared responsibility)

6. Tony Gillman ASSO - 16 October 2001 Atlas Level-1 Calorimeter Trigger Infrastructure (1) l Cluster Processor & “Common” Modules: ãSchem capture/layout (in-house):CADENCE v13.5 (moving to v14.0 <2002) ãFirmware (in-house): FPGA ADVANTAGE v5.1 (HDS, Leonardo Spectrum, ModelSim) Xilinx ISE v4.1 Altera MAX+PLUS II ãManufacturing (out-sourced):Commercial ãTesting (in-house):Module stand-alone  CP sub-system JTAG Xilinx ChipScope ãIntegration (Heidelberg + CERN):Full Level-1 “Slice” tests  ATLAS

7. Tony Gillman ASSO - 16 October 2001 Atlas Level-1 Calorimeter Trigger Infrastructure (2) l Jet/Energy Processor: ãSchem. capture/layout (in-house):CADENCE v??? ãFirmware (in-house): FPGA ADVANTAGE v??? Xilinx ??? ãManufacturing (out-sourced):Commercial ãTesting (in-house):Module stand-alone  JEP sub-system ãIntegration (Heidelberg + CERN):Full Level-1 “Slice” tests  ATLAS l Backplane: ãSchem. capture/layout (in-house): Mentor Graphics design suite ãManufacturing (out-sourced):Commercial (APW) ãTesting (in-house):Board stand-alone  CP/JEP sub-systems

8. Tony Gillman ASSO - 16 October 2001 Atlas Level-1 Calorimeter Trigger Interfaces - Input l Real-time data path: ã~2000 cables carrying serial LVDS data at 480 Mbaud/channel from PPr system ãRef: PreProcessor System ??? ãContact: P Hanke (KIP, University of Heidelberg) l TTC timing/control path: ã~7 optical fibres from TTC system into TCMs (1 TCM per crate) ãRef: TTC System ??? ãContact: ???

9. Tony Gillman ASSO - 16 October 2001 Atlas Level-1 Calorimeter Trigger Interfaces - Output l Real-time data path:  Multiplicities of e/  and  /hadron clusters and jets, and missing/total energy sums to CTP … ãRef: (to be added) ãContact: R Spiwoks ??? l RoI data to Level-2: ã6 S-link fibre-pairs (160 Mbyte/s) to RoIB... ãRef: (to be added) ãContact: (to be added) l “Slice” data to DAQ: ã12 S-link fibre-pairs (160 Mbyte/s) to ROS... ãRef: (to be added) ãContact: (to be added)

10. Tony Gillman ASSO - 16 October 2001 Atlas Level-1 Calorimeter Trigger Interfaces - Miscellaneous l Detector Control System: ãCAN-bus … (to be expanded) ãRef: (to be added) ãContact: U Schaefer ??? l Online Control System: ãVME Interfacing … (to be expanded) ãRef: (to be added) ãContact: (to be added)

11. Tony Gillman ASSO - 16 October 2001 Atlas Level-1 Calorimeter Trigger Schedule - Milestones PBS no Milestone Date 10.1.2.1Start CP/JEP sub-system testsJan 2002 10.1.2.1Start “Slice” tests April 2002 10.1.2.1Completion of “Slice” tests (  1)July 2002 10.1.2.1.4.8FDR for TCMOct 2002 10.1.2.1.4.8PRR for TCMNov 2002 10.1.2.1.4.9PDR for ROD (CP/JEP) Oct 2002 10.1.2.1.4.3FDR for Processor Backplane (PB)Oct 2002 10.1.2.1.2.1FDR for CPM Nov 2002 10.1.2.1.4.3PRR for Processor Backplane (PB) Nov 2002 10.1.2.1.2.1PRR for CPMDec 2002 10.1.2.1.3.1FDR for JEMDec 2002 10.1.2.1.3.1PRR for JEMJan 2003 10.1.2.1.4.1FDR for CMMJan 2003 10.1.2.1.4.1PRR for CMMFeb 2003 10.1.2.1Completion of “Slice” tests (  2)April 2003 10.1.2.1.4.9FDR for ROD (CP/JEP) Jun 2003 10.1.2.1.4.9PRR for ROD (CP/JEP) Jul 2003 10.1.2.1.2Full CP sub-system available for System testsDec 2003 10.1.2.1.3Full JEP sub-system available for System testsJan 2004 10.1.2.1.2Completion of CP sub-system testsDec 2004 10.1.2.1.3Completion of JEP sub-system testsJan 2005 10.1.2.1Calorimeter trigger available in situMay 2005

12. Tony Gillman ASSO - 16 October 2001 Atlas Level-1 Calorimeter Trigger Quality Assurance l Internal peer review system: ãPreliminary Design Review (PDR) for every major component/module ãpanels include specialists in electronics, system engineering, DAQ and software ãFinal Design Review (FDR) after full evaluation in “Slice” Test system ãpanels include representative from Technical Co-ordination ãProduction Readiness Review (PRR) to approve full manufacture ãTC representative from FDR informs and advises (~1 month > FDR) l In addition, all electronics with UK responsibility will conform to ISO9000 requirements - e.g. ãRoute Cards and Problem Reports for all modules ãEtc, etc, etc...

13. Tony Gillman ASSO - 16 October 2001 Atlas Level-1 Calorimeter Trigger Recent Results (1) l LVDS tests (Birmingham/Mainz): l Trigger uses ~7000 high-bandwidth serial links (e.g. >4 Gbyte/s  CPM) l Bit-error rate (BER) requirements <10 -10 per link (to minimise false triggers) l NS Bus LVDS (de)serialiser chipset - DS92LV1021/121 l Studied cable types, lengths (<20m), pre-compensation techniques l BER <10 -13 per link achieved for cable lengths up to 20m (L-R equalisation) l N.B. Important requirements (achievable): ãgood board layout, clean power supplies, low clock jitter,...

14. Tony Gillman ASSO - 16 October 2001 Atlas Level-1 Calorimeter Trigger Recent Results (2) l ROD tests (CERN): l TTC used to trigger system l RoIs sent on G-link to ROD l Fragments sent in parallel to RoIB/ROS l Fragments fully-checked on receipt l Firmware errors in S-Link interfaces (now understood) l ROD latency within specifications