F-Tile Architecture and PMA and FEC Direct PHY IP User Guide

ID 683872
Date 1/24/2024
Public

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3.4.8. TX and RX PMA and Core Interface FIFO Signals

Table 51.  TX and RX PMA and Core Interface FIFO SignalsRefer to Variables Defining Bits for the Interfacing Ports in Port and Signal Reference for variable definitions.
Signal Name Clocks Domain/Resets Direction Description
tx_pmaif_fifo_empty [(N*X)-1:0] asynchronous output PMA Interface TX FIFO empty.
tx_pmaif_fifo_pempty [(N*X)-1:0] asynchronous output PMA Interface TX FIFO partially empty.
tx_pmaif_fifo_pfull [(N*X)-1:0] asynchronous output PMA Interface TX FIFO partially full.
rx_pmaif_fifo_empty [(N*X)-1:0] asynchronous output PMA Interface RX FIFO empty.
rx_pmaif_fifo_pempty [(N*X)-1:0] asynchronous output PMA Interface RX FIFO partially empty.
rx_pmaif_fifo_pfull [(N*X)-1:0] asynchronous output PMA Interface RX FIFO partially full.
tx_fifo_full [(N*X)-1:0]

tx_coreclkin

tx_reset

output Core Interface TX FIFO full port.
tx_fifo_empty [(N*X)-1:0]

TX Word Clock

TX Bond Clock

Sys PLL Clock

output Core Interface TX FIFO empty port.
tx_fifo_pfull [(N*X)-1:0]

tx_coreclkin

tx_reset

output Core Interface TX FIFO partially full port.
tx_fifo_pempty [(N*X)-1:0]

TX Word Clock

TX Bond Clock

Sys PLL Clock

output Core Interface TX FIFO partially empty port.
rx_fifo_full [(N*X)-1:0]

Transfer clock:

Word Clock

Bond Clock

Sys PLL Clock

rx_reset

output Core Interface RX FIFO full port.
rx_fifo_empty [(N*X)-1:0]

rx_coreclkin

rx_reset

output Core Interface RX FIFO empty port.
rx_fifo_pfull [(N*X)-1:0]

Transfer clock:

Word Clock

Bond Clock

Sys PLL Clock

rx_reset

output Core Interface RX FIFO partially full port.
rx_fifo_pempty [(N*X)-1:0]

rx_coreclkin

rx_reset

output Core Interface RX FIFO partially empty port.
tx_dll_lock [(N*X)-1:0] tx_reset output TX DLL locked status signal for data transfer. Monitor this signal when the core interface FIFO is in elastic mode, wait for tx_dll_lock port to assert before asserting the write enable bit for the core interface FIFO. Refer to TX and RX Parallel Data Mapping Information for Different Configurations.
rx_fifo_rd_en [(N*X)-1:0]

rx_coreclkin

rx_reset

input Core Interface RX FIFO read enable port.