PRELIMINARY
SF104-P01
SF3013M Fingerprint Image Sensor Module User Manual
Page - 23
4.2 Reset
There are 3 sources of Reset that can force the chip entering reset state (in which all
internal logic are disabled)
the hardware reset pin
the SPI software reset command
the reset caused by the content of REG_MODE
(REG11) register, as described earlier.
However the internal SPI state machine can only be reset by the hardware reset pin.
Since the hardware reset pin is multiplexed with the interrupt signal, the hardware reset
pin becomes unavailable when the (finger detect) interrupt is enabled.
4.3 Finger detection mode and interrupt