SPRUIM2H May 2020 – October 2023 AM2431 , AM2432 , AM2434 , AM6411 , AM6412 , AM6421 , AM6422 , AM6441 , AM6442
| Message Type | Value (hex) |
|---|---|
| Sync | 0 |
| Delay_Req | 1 |
| Pdelay_Req | 2 |
| Pdelay_Resp | 3 |
| Reserved | 4:7 |
| Follow_Up | 8 |
| Delay_Resp | 9 |
| Pdelay_Resp_Follow_Up | A |
| Announce | B |
| Signaling | C |
| Management | D |
| Reserved | E:F |
Once a transmitted or received packet is determined to be a valid time sync packet, the Ethernet Transmit Event or Ethernet Receive Event is loaded onto the Event FIFO.
The CPSW_CPTS_EVENT_1_REG register contains the Message Type and Sequence ID values from the original time sync packet. The CPSW_CPTS_EVENT_0_REG (and CPSW_CPTS_EVENT_3_REG) register contains the time stamp value when the packet arrived at the corresponding port.