XAUI Tx lane reversal

Hi,

Have you tried the assignment? You can find this in the Transceiver PHY IP User Guide.

Example 7-1 shows how to remove the restriction on logical lane 0 channel assignment in Stratix V

devices by redefining the pma_bonding_master parameter using the Quartus II Assignment Editor. In

this example, the pma_bonding_master was originally assigned to physical channel 1. (The original

assignment could also have been to physical channel 4.) The to parameter reassigns the

pma_bonding_master to the XAUI instance name shown in quotation marks. You must substitute the

instance name from your design for the instance name shown in quotation marks

Example 7-1: Overriding Logical Lane 0 Channel Assignment Restrictions in Stratix V Devices

set_parameter -name pma_bonding_master "\"1\"" -to "<xaui

instance name>|sv_xcvr_xaui:alt_xaui_phy|sv_xcvr_low_latency_phy_nr:

alt_pma_0|sv_xcvr_custom_native:sv_xcvr_custom_inst|sv_xcvr_native:

gen.sv_xcvr_native_insts[0].gen_bonded_group.sv_xcvr_native_inst"

Swapping parallel data bus wouldn't work because the XAUI PHY IP expects start-of-packet symbols come to Lane 0.