Tx timestamp status nanoseconds register
| TXTSSLO | Transmit Timestamp Status Low This field contains the 31 bits of the Nanoseconds field of the Transmit packet’s captured timestamp. |
| TXTSSMIS | Transmit Timestamp Status Missed When this bit is set, it indicates one of the following: The timestamp of the current packet is ignored if TXTSSTSM bit of the Timestamp control Register (ETH_MACTSCR) is reset The timestamp of the previous packet is overwritten with timestamp of the current packet if TXTSSTSM bit of the Timestamp control Register (ETH_MACTSCR) is set. |