Valid Recovered Data Capture Window
The client should monitor the assertion of the PMA's RX_SIGNAL_DETECT
and wait for
tRX_CR_CEINIT
or
tRX_CR_NOINIT
before deciding to use the true recovered data from PMA CDR block.
| Timing Parameters | 20b PHY | 32b PHY | Description | ||
|---|---|---|---|---|---|
| Minimum | Maximum | Minimum | Maximum | ||
| tRX_CR_CEINIT | (4.447 + 2,496.420/rate1) μs | (236.918 + 3,706.110/rate) μs | 22.3 μs | 117.4 μs | Initial time required to lock clock recovery once valid data is received. Final number is TBD. |
| tRX_CR_NOINIT | 1.389 μs | 1.622 μs | 658 ns | 838 ns | Time required to lock clock recovery once valid data is received, assuming initial adaptation has been previously completed. Final number is TBD. |
1 Rate is in Gbps