PRELIMINARY
SF104-P01
SF3013M Fingerprint Image Sensor Module User Manual
Page - 10
command code
name
function
read/write
0x01
rdata
read pixel data
R
0x02 start
start
scan
W
0x03 status
read
status R
0xC0 srst
software
reset W
0x20+N rread
read
register
R
0x40+N rwrite
write
register
W
For the rread and rwrite command, the number N is the register address. The effective
N is in the range of 0x00 to 0x11.
The register content is summarized in the following table:
N
Address
Name
Function
RW
Default
Value
7
6
5
4
3
2
1
0
0
0x00
reg_clk
clock control
RW
0
1
0x01
reg_pag
pag control
RW
0
en_test1 en_test0
2
0x02
reg_dcoc
dc offset
RW
0
3
0x03
reg_adc
adc setting
RW
0
4
0x04
reg_otp_addr
OTP address
RW
0
5
0x05
reg_otp_wdat
OTP wirte data
RW
0
otp_wd
6
0x06
reg_otp_mode OTP control
RW
0
otp_prg otp_rst
otp_ceb
7
0x07
reg_otp_rdat
OTP read data
RW
8
0x08
reg_deth
finger detection threshold
RW
0xFF
9
0x09
reg_ddiv
clock divider for detection
RW
0
10
0x0A
reg_enab
function enable bits
RW
0 en_window en_inscan en_det en_sqwv lowcap
en_osc
en_analog
11
0x0B
reg_mode
mode control bits
RW
0
en_intr
12
0x0C
reg_llx
windowing function setting
RW
0
13
0x0D
reg_lly
windowing function setting
RW
0
14
0x0E
reg_urx
windowing function setting
RW
0x9F
15
0x0F
reg_ury
windowing function setting
RW
0x9F
16
0x10
reg_chmd
change mode
W
(N/A)
ch_mode
17
0x11
reg_inscanline in scan detection line number RW
0x40
Reserve
Internal test
otp_rdat
test1
test0
div_opclk
pga2_gain
pga1_gain
dc_offset
adc_bias
adc_vrt
adc_vrb
otp_yp
otp_ain
ury
in_scan_line
deth
ddiv
en_bits
llx
lly
urx