The JTAG boot mode uses only dedicated I/O pins as listed in the following table.
See Test and Debug for information on the Versal device PMC TAP and Arm DAP, including supported JTAG instructions through the JTAG interface.
| Pin Name | Direction | Description |
|---|---|---|
| TDI | Input | Test data input |
| TDO | Output | Test data output |
| TMS | Input | Test mode select |
| TCK | Input | Test clock |