7 Error State

MTCH9010 implements a saved parameters validation feature using a CRC-16-CCITT algorithm when the System Lock option is enabled.

If the CRC-16-CCITT algorithm detects data corruption in the saved parameters, the device enters the Error state. In this state, the OUT and HB pins output a square signal with a period of 200 ms and a 50% duty cycle. These two signals are complementary to each other.

Figure 7-1. MTCH9010 Error OUT and HB Pins Signals

Important: If the device enters the Error state, it is recommended to redo the configuration using the Enhanced Configuration mode or disable System Lock and use the configuration pins for operation parameters settings.