For guidelines on BUFGCTRL locations for USRCLKs generated via Fabric PLLs/MMCMs, refer to the attached Microsoft Word and Excel documents.
For BUFG_LB locations for TXUSRCLK/TXOUTCLKs and RXUSRCLK/RXOUTCLKs, refer to the tables below.
Please ensure in the Vivado tools that the correct BUFG_LB locations are used as per these tables.
This information will be added to the 7 Series GTZ Advance Specification User Guide (UG478).
| Octal | Outclk to USRCLK | BUFG_LB Location constraint |
| North | TXOUTCLK0 to TXUSRCLK0 | BUFG_LB_X1Y0 or BUFG_LB_X1Y16 |
| TXOUTCLK1 to TXUSRCLK1 | BUFG_LB_X1Y4 or BUFG_LB_X1Y20 | |
| South | TXOUTCLK0 to TXUSRCLK0 | BUFG_LB_X3Y15 |
| TXOUTCLK1 to TXUSRCLK1 | BUFG_LB_X3Y11 |
| Octal | Outclk to USRCLK | BUFG_LB Location constraint |
| North | RXOUTCLK0 to RXUSRCLK0 | BUFG_LB_X1Y12 or BUFG_LB_X1Y28 |
| RXOUTCLK1 to RXUSRCLK1 | BUFG_LB_X1Y2 or BUFG_LB_X1Y18 | |
| RXOUTCLK2 to RXUSRCLK2 | BUFG_LB_X1Y6 or BUFG_LB_X1Y22 | |
| RXOUTCLK3 to RXUSRCLK3 | BUFG_LB_X1Y10 or BUFG_LB_X1Y26 | |
| South | RXOUTCLK0 to RXUSRCLK0 | BUFG_LB_X3Y3 |
| RXOUTCLK1 to RXUSRCLK1 | BUFG_LB_X3Y13 | |
| RXOUTCLK2 to RXUSRCLK2 | BUFG_LB_X3Y9 | |
| RXOUTCLK3 to RXUSRCLK3 | BUFG_LB_X3Y5 |
| Name | File Size | File Type |
|---|---|---|
| GTZ_Clocking_guidelines_using_BUFGCTRL.docx | 341 KB | DOCX |
| BUFGCTRL_Locations.xlsx | 17 KB | XLSX |
| AR# 59039 | |
|---|---|
| Date | 06/17/2014 |
| Status | Active |
| Type | General Article |
| Devices |
|