In Virtex-6 FPGA instances of the RXAUI v1.1 core, the MMCM parameter values used in the example design will result in an unsupported multiplication factor of 4. This will result in DRC failures in the next release of the ISE Design Suite software.
For more information on the MMCM issue, see (Xilinx Answer 33849).
The MMCM parameter values should be changed as follows:
CLKFBOUT_MULT_F: from 4.0 to 6.0
CLKOUT0_DIVIDE_F: from 2.0 to 3.0
CLKOUT1_DIVIDE: from 4 to 6
| Answer Number | 问答标题 | 问题版本 | 已解决问题的版本 |
|---|---|---|---|
| 33849 | Virtex-6 FPGA MMCM - New Requirements for all MMCMs, VCO minimum frequency, and CLKFBOUT_MULT_F values | N/A | N/A |
| 33311 | LogiCORE IP RXAUI v1.1 and v1.1 rev1 - Release Notes and Known Issues for ISE 11.3 and ISE 11.5 | N/A | N/A |
| 34019 | ISE Design Suite 11.4.1 - Known Issues for Virtex-6 FPGA Service Pack | N/A | N/A |
| Answer Number | 问答标题 | 问题版本 | 已解决问题的版本 |
|---|---|---|---|
| 33311 | LogiCORE IP RXAUI v1.1 and v1.1 rev1 - Release Notes and Known Issues for ISE 11.3 and ISE 11.5 | N/A | N/A |
| 34019 | ISE Design Suite 11.4.1 - Known Issues for Virtex-6 FPGA Service Pack | N/A | N/A |