When generating Virtex-6 FPGA Integrated Block Wrapper for PCI Express,the following transceiver parameters are set in the GTX wrapper.
.TERMINATION_CTRL(5'b10101),
.TERMINATION_OVRD("TRUE"),
Are these the correct values?
The following transceiver parameters are required for ES silicon:
.TERMINATION_CTRL(5'b10101),
.TERMINATION_OVRD("TRUE"),
For production silicon these values should be modified in the file /source/gtx_wrapper_v6.v as follows:
.TERMINATION_CTRL(5'b00000),
.TERMINATION_OVRD("FALSE"),
This will be fixed in the v1.5 release included in ISE software 12.1.
Revision History
03/23/2010 - Initial Release