Abov MC97F6108A - Page 40

5. I/O ports MC97F6108A User’s manual
40
PSR2 (Analog I/O port Selection Register): 2F4AH
7
6
5
4
3
2
1
0
PSR27
PSR26
PSR25
PSR24
PSR23
PSR22
PSR21
PSR20
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial value: 00H
PSR27
P1[7] Analog Input selection register
0
P1[7] digital input (default)
1
P1[7] AIN[7] input
PSR26
P1[0] Analog Input selection register
0
P1[0] digital input (default)
1
P1[0] AIN[6] input
PSR25
P2[0] Analog Input selection register
0
P2[0] digital input (default)
1
P2[0] AIN[5] input or AMP2O output
PSR24
P0[6] Analog Input selection register
0
P0[6] digital input (default)
1
P0[6] AIN[4] input
PSR23
P0[4] Analog Input selection register
0
P0[4] digital input (default)
1
P0[4] AIN[3] input
PSR22
P0[3] Analog Input selection register
0
P0[3] digital input (default)
1
P0[3] AIN[2] input
PSR21
P0[2] Analog Input selection register
0
P0[2] digital input (default)
1
P0[2] AIN[1] input
PSR20
P0[1] Analog Input selection register
0
P0[1] digital input (default)
1
P0[1] AIN[4] input
NOTE: It is recommended to set this register when using port as Analog input such as ADC
input, Comparator input, or OP-Amp input/output. And do not set this register when
port is used as digital input.