GPTP
- EthTrcv & IEEE 802.1AS — gPTP and Hardware Timestamping in the PHY
How IEEE 802.1AS (gPTP) distributes time across the vehicle network, why timestamp accuracy is decided inside the PHY chip, and how EthTrcv, Eth, EthTSyn, and StbM work together to deliver it.
- EthSwt — Global Time & Clock Synchronization Between Cascaded Switches
How EthSwt provides port-specific hardware timestamps for EthTSyn, and how cascaded switches synchronize their internal clocks over uplink ports to avoid separate path-delay measurement.