eCPRI Intel® FPGA IP User Guide

ID 683685
Date 12/14/2021
Public

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5.2. Power, Reset, and Firewalls Signals

Table 25.  eCPRI IP Reset, Power, and Firewalls SignalsThese signals are asynchronous.
Signal Name Width (Bits) I/O Direction Description
rst_tx_n 1 Input Reset signal from Ethernet MAC TX.

Resets the eCPRI IP in RX direction. Resets the De-concatenation, Header mapper/De-mapper, Ethernet header removal, eCPRI message 5 packet parser and, Packet classifier.

rst_rx_n 1 Input Reset signal from Ethernet MAC RX.

Resets the eCPRI IP in TX direction. Resets the Concatenation, Header mapper/De-mapper, Ethernet header insertion, eCPRI message 5 packet parser, and Packet queue.

rst_csr_n 1 Input Reset signal for CSR logic.

Resets the eCPRI IP control and status registers. When asserted, resets the eCPRI IP.

tx_lanes_stable 1 Input Signal that indicates the clk_tx signal from MAC is stable and ready for operation.
rx_pcs_ready 1 Input Signal that indicates the clk_rx signal from MAC is stable and ready for operation.
iwf_rst_tx_n 1 Input Reset signal for the IWF TX path.
iwf_rst_rx_n 1 Input Reset signal for the IWF RX path.
rst_tx_n_sync 1 Output

Reset output from IWF. This signal is synchronous to clk_tx.

Intel recommends you to connect this signal to iwf_rst_tx_n.
rst_rx_n_sync 1 Output

Reset output from IWF. This signal is synchronous to clk_rx.

Intel recommends you to connect this signal to iwf_rst_rx_n.
iwf_gmii_rxreset_n[N] 1 Input Resets the GMII receiver interface and FIFO read logic.
iwf_gmii_txreset_n[N] 1 Input Resets the GMII transmitter interface and FIFO write logic.
gmii_rxreset_n[N] 1 Output Resets the GMII receiver interface and FIFO read logic.
gmii_txreset_n[N] 1 Output Resets the GMII transmitter interface and FIFO write logic.