4.7 XCVR Interface
(Ask a Question)The transceiver I/O available in the RT PolarFire device is dedicated for high-speed serial communication protocols. Libero Defined DNC pins are pulled up internally when not used in the Libero design.
| Name | Direction | Description | Unused Condition |
|---|---|---|---|
| XCVR_xy_REFCLK_P | Input | Differential serial reference clock xy - location x - transceiver number (0, 1, 2, 3) y - lane number (0, 1, 2, 3) | DNC |
| XCVR_xy_REFCLK_N | |||
| XCVR_x_TXy_P | Output | Differential serial transmit pins. x - transceiver number (0, 1, 2, 3) y - lane number (0, 1, 2, 3) | Libero-defined DNC. |
| XCVR_x_TXy_N | |||
| XCVR_x_RXy_P | Input | Differential serial receive pins. x - transceiver number (0, 1, 2, 3) y - lane number (0, 1, 2, 3) | Libero-defined DNC, see PolarFire Family Transceiver User Guide. |
| XCVR_x_RXy_N |