8.3.5.2 Readback
The MUXout pin can be configured to read back useful information from the device. Common uses for readback are:
- Read back registers to ensure that they have been programmed to the correct value.
- Read back the lock detect status to determine if the PLL is in lock.
- Read back VCO calibration information so that it can be used to improve the lock time.
- Read back information to help troubleshoot.