Virtex-6 FPGA GTH Transceivers User Guide www.xilinx.com 117UG371 (v2.0) February 16, 2010RX Raw Mode• Management Interface Address:The Lane Address setting is used to specify which GTH lane to access:• PRBS_ERR_CNT0: 0x8002 with MMD Address 0x03• PRBS_ERR_CNT1: 0x8003 with MMD Address 0x03• PRBS_TIMER_0: 0x8004 with MMD Address 0x03• PRBS_TIMER_1: 0x8005 with MMD Address 0x03• PRBS_TIMER_2: 0x8006 with MMD Address 0x03RX Raw ModeFunctional DescriptionThe GTH transceiver provides another datapath mode for non-encoded applications orwhen the user wants to bypass the 8B/10B and 64B/66B blocks.Ports and AttributesTable 4-12 defines the RX raw mode ports..Table 4-12: RX Raw Mode PortsPort Dir Clock Domain DescriptionRXCODEERR0[7:0]RXCODEERR1[7:0]RXCODEERR2[7:0]RXCODEERR3[7:0]Out RXUSERCLKIN0RXUSERCLKIN1RXUSERCLKIN2RXUSERCLKIN3These outputs indicate an error occurred on RXDATA or theyare used as an extension of RXDATA depending on the modeselected in the receive datapath:8B/10B: These outputs indicate that RXDATA is the result ofan 8B/10B code error.RXCODEERR[7] corresponds to RXDATA[63:56]RXCODEERR[6] corresponds to RXDATA[55:48]RXCODEERR[5] corresponds to RXDATA[47:40]RXCODEERR[4] corresponds to RXDATA[39:32]RXCODEERR[3] corresponds to RXDATA[31:24]RXCODEERR[2] corresponds to RXDATA[23:16]RXCODEERR[1] corresponds to RXDATA[15:8]RXCODEERR[0] corresponds to RXDATA[7:0]64B/66B: RXCODEERR[0] indicates a 64B/66B code error.RXCODEERR[7:1] are not used for this mode.Raw mode: These outputs are used as part of RXDATA[79:72].