4.7 XCVR Interface

The transceiver I/O available in the RT PolarFire® SoC device is dedicated for high-speed serial communication protocols. Libero Defined DNC pins are pulled up internally when not used in the Libero design. The following table lists the XCVR interface pins.
Table 4-11. XCVR Interface Pins
NameDirectionDescriptionUnused Condition
XCVR_xy_REFCLK_PInputDifferential serial reference clock xy - location

x- transceiver number (0, 1, 2 and 3)

y- lane number (0, 1, 2 and 3)

DNC
XCVR_xy_REFCLK_N
XCVR_x_TXy_POutputDifferential serial transmit pins.

x - transceiver number (0, 1, 2 and 3)

y- lane number (0, 1, 2 and 3)

Libero-defined DNC
XCVR_x_TXy_N
XCVR_x_RXy_PInputDifferential serial receive pins.

x- transceiver number (0, 1, 2 and 3)

y- lane number (0, 1, 2 and 3)

Libero-defined DNC, see PolarFire Family Transceiver User Guide.
XCVR_x_RXy_N