PRELIMINARY
SF104-P01
SF3013M Fingerprint Image Sensor Module User Manual
Page - 22
Change mode for switching mode.
See the “finger detection” section below.
REG_INSCA
NLINE
11 RW
0100_0000 Set in scan detection finger detection line number
[7:0]
INSCANLINE_NUMBER
In scan line number value which limitation is 0~0x9F or Y axis range when
enable windowing function.
4 Operation
workflow
4.1 General description
The SF104 hardware design implements a protection scheme that fingerprint image
will only be delivered when “finger touch” is detected. If not, reading image will return invalid
data. After the finger first touch the sensor, it can detect the finger on sensor and continue
to read out fingerprint image to speed up the frame rate of image readout until finger remove
from sensor and it will output white image data after in scan line number. The process is
summarized in the diagram below:
