7.3.9 Register Readback
The MUXout pin can also 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. LMX2572 allows any of its registers to be read back.
- 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.