SNLS779A July 2025 – November 2025 DP83TC815-Q1
PRODUCTION DATA
The DP83TC815-Q1 integrates IEEE 1588v2/802.1AS timestamping and other additional hardware engines to offer highly accurate synchronization with synchronization jitter of up to ±15ns (with options to reduce to up to ±1ns for point-to-point connections).
The DP83TC815-Q1 is also capable of providing a high quality time synchronized clock signal to achieve system level synchronization for ADAS sensor data synchronization, Corner RADAR Chirp synchronization, 1 pps signal for LiDAR, V2X, etc.
The PTP implementation consists of the following major function blocks:
The range of register address used for IEEE802.1AS PTP implementation are listed below:
| ADDRESS |
|---|
| 0x0D00 to 0x0D0A |
| 0x0D10 to 0x0D1D |
| 0x0D20 to 0x0D2B |
| 0x0D30 to 0x0D3F |
| 0x0D40 to 0x0D4F |
| 0x0D50 to 0x0D54 |
| 0x0DE0, 0x0DF0 |
IEEE802.1AS provides a time synchronization protocol, often referred to as the Precision Time Protocol (PTP), which synchronizes time across an Ethernet network. DP83TC815-Q1 supports IEEE802.1AS enabled Ethernet applications by providing hardware support for three time-critical elements.