E-Tile Hard IP User Guide: E-Tile Hard IP for Ethernet and E-Tile CPRI PHY Intel® FPGA IPs
2.11.9. PMA Direct Interface
The E-Tile Hard IP for Ethernet Intel FPGA IP PMA Direct TX and RX Interfaces are available when you turn on Include alternate ports for 10G/25G channels in 100GE or 1 to 4 10GE/25GE with optional RS-FEC and 1588 PTP variation.
These signals are never connected to the Ethernet hard logic. They are available when you need to switch at run time to PMA modes.
| Signal Name | Width | Description | 
|---|---|---|
| i_sl_tx_pma[ch-1:0] | 80 | PMA Direct TX datapath for corresponding transceiver. For all Ethernet cores, this signal does nothing until core is reconfigured at run-time to enter PMA Direct mode. | 
| o_sl_rx_pma[ch-1:0] | 80 | PMA Direct RX datapath for corresponding transceiver. For all Ethernet cores, this signal does nothing until core is reconfigured at run-time to enter PMA Direct mode. |