5.4. Resets
| Signal Name | Direction | Type | Description |
|---|---|---|---|
| subsystem_cold_rst_n | In | Reset | Asynchronous, active-low hard global reset. Resets the TX MAC, RX MAC, TX PCS, RX PCS, transceivers (transceiver reconfiguration registers and interface), and Ethernet reconfiguration registers. This reset leads to the de-assertion of the o_tx_lanes_stableand o_rx_pcs_ready output signals. |
| i_p<n>_tx_rst_n | In | Reset | Asynchronous, active-low hard reset. Resets the TX interface, including the TX PCS and TX MAC. This reset leads to the de-assertion of the o_tx_lanes_stable output signal. |
| i_p<n>_rx_rst_n | In | Reset | Asynchronous, active-low hard reset. Resets the RX interface, including the RX PCS and RX MAC. This reset leads to the de-assertion of the o_rx_pcs_ready output signal. |
| o_p<n>_tx_rst_ack_n | Out | Reset Acknowledge | Activelow acknowledge signal for i_tx_rst_n. The user should not de-assert i_tx_rst_n until o_tx_rst_ack_n is asserted. |
| o_p<n>_rx_rst_ack_n | Out | Reset Acknowledge | Activelow acknowledge signal for i_rx_rst_n. The user should not de-assert i_rx_rst_n until o_rx_rst_ack_n is asserted. |
| subsystem_cold_rst_ack_n | Out | Reset Acknowledge | Activelow acknowledge signal for subsystem_cold_rst_n. The user should not de-assert subsystem_cold_rst_n until subsystem_cold_rst_ack_nis asserted. |
| Reset Signal | Ethernet Subsystem IP Block |
|---|---|
| subsystem_cold_rst_n |
|
| app_ss_st_txphydirect_areset_n | AXI-ST Bridge TX Logic/PTP TX |
| app_ss_st_rxphydirect_areset_n | AXI-ST Bridge RX Logic/PFC RX Logic |
| app_ss_lite_areset_n | AXI-Lite Bridge |
| i_tx_rst |
|
| i_rx_rst |
|