############################################################################################ # # CMX Net-to-Resource File for the # Topo Function FPGA IO signals used for the connections to the TP FPGA # -=============------------------------------------------================ # # Original Rev. 02-Apr-2012 # Rev. 03-Apr-2013 find location for these signals # Most Recent Rev. 20-Jun-2013 swap the two channels to ease trace routing # # BF to TP connections for support of S-link return channels # ========----------------------------====================== # # If the TP function needs to support S-link protocol (rather than G-link) # the CMX will need to receive the return channel of the Duplex S-link. # # The SFP optical receiver from the 2x S-link connections (DAQ and ROI) # cannot be directly received in the TP FPGA because all 36x MGT receivers # of the TP FPGA are already used with the 3x12 Avago optical receivers. # # The SFP optical receivers are instead routed to MGT receivers located # on the BF FPGA and the serial signal received is sent from the BF FPGA # to the TP FPGA via two differential Select IO signals. # # Signal Nets referenced in this file: # ------------------------------------ # # BF_TO_TP_DAQ_SLINK_RETURN_DIR Direct signal # BF_TO_TP_DAQ_SLINK_RETURN_CMP Complement signal # for the return S-link channel for DAQ readout # # BF_TO_TP_ROI_SLINK_RETURN_DIR Direct signal # BF_TO_TP_ROI_SLINK_RETURN_CMP Complement signal # for the return S-link channel for ROI readout # ############################################################################################ # 4x Select IO pins forming 2x differential signals going to the TP FPGA # This is IO Bank 26 and the signals will be routed north on trace layer 6. NET 'BF_TO_TP_DAQ_SLINK_RETURN_DIR' U2- #> F06 #> T06 A40 NET 'BF_TO_TP_DAQ_SLINK_RETURN_CMP' U2- #> F06 #> T06 A41 NET 'BF_TO_TP_ROI_SLINK_RETURN_DIR' U2- #> F06 #> T06 B38 NET 'BF_TO_TP_ROI_SLINK_RETURN_CMP' U2- #> F06 #> T06 A39