5.4. RX Time of Day Interface

Table 36. Signals of the RX Time of Day InterfaceAll signals are synchronous to `clk_rx` clock.
Signal Name	Width (Bits)	I/O Direction	Description
`rx_ingress_timestamp_96b_data`	96	Input	Whether or not the current packet on the RX client interface is a 1588 PTP packet, indicates the V2-format timestamp when the IP received the packet on the Ethernet link. The IP core provides a valid value on this signal in the same cycle it asserts the RX SOP signal for 1588 PTP packets.
`rx_ingress_timestamp_96b_valid`	1	Input	Indicates that the `rx_ingress_timestamp_96b_data` signal is valid in the current cycle. This signal is redundant with the RX SOP signal for 1588 PTP packets.
`ext_rx_ingress_timestamp_96b_data`	96	Output	Indicates V2-format timestamp when the IP receives the RX packet on the Ethernet link. The IP provides a valid value on this signal in the same cycle it asserts the RX SOP signal for 1588 PTP packets.

5.4. RX Time of Day Interface - 2025-12-17