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Overview of APVE Functionality and Calibration Procedures

The APV Emulator (APVE) serves to protect silicon strip trackers against buffer overflow and detect synchronization loss in the front-end readout chip (APV25). Proper setup of the APVE is crucial following any tracker configuration changes, requiring the writing of parameters via VME. While a hard reset is generally unnecessary, the FPGA is loaded upon VME power-up and reset on SYS_RESET*. Configuration is further facilitated by downloading from VME. This document outlines essential calibration procedures handled by Greg Iles.

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Overview of APVE Functionality and Calibration Procedures

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  1. Purpose of APVE... APVE protects the silicon strip tracker against buffer overflow and checks for sync loss in the front-end readout chip (APV25) Resets... The APV Emulator (APVE) Calibration WG: Greg Iles (www.hep.ph.ic.ac.uk/~ilesgm)

  2. Note.... • Set-up of APVE • After a change in Tracker configuration it is necessary to write configuration parameters to the APVE via VME. • Hard reset should never be necessary, but........ • FPGA is loaded on VME power up. • FPGA and is reset on VME SYS_RESET* after power up. • Tracker configuration downloaded to APVE via VME. Calibration WG: Greg Iles (www.hep.ph.ic.ac.uk/~ilesgm)

  3. Control structure GTCS LTCS APVE TTCvi TTCex FMM Fast Merge Module TTCtx Reset & L1As FEC Fast control CCU Ring ? APV Pipeline address FED Calibration WG: Greg Iles (www.hep.ph.ic.ac.uk/~ilesgm)

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