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AR# 15200

4.2i BitGen Virtex-II Pro RocketIO - RXPOLARITY has no effect in hardware

Description

Keywords: CONFIGIN

Urgency: Standard

General Description:
When I drive the RXPOLARITY line, it works successfully in simulation, but has no effect in hardware.

Solution

4.2i BitGen is incorrectly mapping the RXPOLARITY pin to the CONFIGIN input on the transceiver.

This issue is fixed in the 5.1i software.

To work around this problem, connect your RXPOLARITY input to the CONFIGIN pin on the transceiver instantiation.

For example:

GT_CUSTOM Igt_i0 (
.CONFIGENABLE (1'b0),
.CONFIGIN ( rxpolarity_reg )
.RXPOLARITY ( rxpolarity_reg )
.....

This change can be made at any stage of implementation: in the source (as above), in the EDIF, or in the NCD file (in FPGA Editor).
AR# 15200
Date Created 09/03/2007
Last Updated 02/02/2005
Status Archive
Type ??????