4.4.2. PTP Timestamp Accuracy
The IP core supports two timestamps accuracy modes, Basic and Advanced. In advanced mode, additional logic generates the high accuracy PTP timestamps.
PTP Timestamp Accuracy in Basic Mode
- The time-of-day (TOD) module can be shared across multiple IP instances of different data rates
- The F-Tile Ethernet Intel® FPGA Hard IP instance 1 and instance 2, shown below, can be located on different F-tiles
- Any 390.625 MHz frequency clock source can drive the TOD clock
PTP Timestamp Accuracy in Advanced Mode
When you select Advanced in the Timestamp accuracy mode under PTP tab in the parameter editor, the IP core requires a single Master TOD module and dedicated TOD Synchronizer and TOD modules for both, TX and RX PTP instances.
|Ethernet Data Rate
|PTP Timestamp Accuracy