F-Tile PMA and FEC Direct PHY Multirate Intel® FPGA IP User Guide

ID 720998
Date 12/19/2022
Public

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2.4. Custom Cadence Control and Status Signals

The following table describes the Custom Cadence control and status signals that are a part of the F-Tile PMA/FEC Direct PHY Multirate Intel FPGA IP.

Table 10.  Custom Cadence Control and Status Signals
Signal Name Clocks Domain/Resets Direction Description
tx_cadence[m]

tx_cadence_fast_clk_fracture[m]

tx_reset[m]

Output This signal indicates the rate at which tx data valid must be asserted and deasserted when the system is running at a higher clock rate than the PMA word/bond clock.
tx_cadence_fast_clk_fracture[m] N/A Input Fast clock input for tx_cadence generator. Use this as the system clock within F-tile (or use (system clock)/2 when Core Interface is in double width mode).
tx_cadence_slow_clk_fracture[m] N/A Input Slow clock input for tx_cadence generator. Use this clock as the PMA word/bond clock (or (PMA word/bond clock)/2 when Core Interface is in double width mode).