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APPENDIX A LIST OF PERIPHERAL CIRCUIT CONTROL REGISTERS
Address
Register name
0x0020
P1DAT
0210
(P1 Port Data
Register)
0x0020
P1IOEN
0212
(P1 Port Enable
Register)
0x0020
P1RCTL
0214
(P1 Port Pull-up/down
Control Register)
0x0020
P1INTF
0216
(P1 Port Interrupt
Flag Register)
AP-A-8
Bit
Bit name
15
P1OUT7
14
P1OUT6
13
P1OUT5
12
P1OUT4
11
P1OUT3
10
P1OUT2
9
P1OUT1
8
P1OUT0
7
P1IN7
6
P1IN6
5
P1IN5
4
P1IN4
3
P1IN3
2
P1IN2
1
P1IN1
0
P1IN0
15
P1IEN7
14
P1IEN6
13
P1IEN5
12
P1IEN4
11
P1IEN3
10
P1IEN2
9
P1IEN1
8
P1IEN0
7
P1OEN7
6
P1OEN6
5
P1OEN5
4
P1OEN4
3
P1OEN3
2
P1OEN2
1
P1OEN1
0
P1OEN0
15
P1PDPU7
14
P1PDPU6
13
P1PDPU5
12
P1PDPU4
11
P1PDPU3
10
P1PDPU2
9
P1PDPU1
8
P1PDPU0
7
P1REN7
6
P1REN6
5
P1REN5
4
P1REN4
3
P1REN3
2
P1REN2
1
P1REN1
0
P1REN0
15–8 –
7
P1IF7
6
P1IF6
5
P1IF5
4
P1IF4
3
P1IF3
2
P1IF2
1
P1IF1
0
P1IF0
Seiko Epson Corporation
Initial
Reset
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R
0
H0
R
0
H0
R
0
H0
R
0
H0
R
0
H0
R
0
H0
R
0
H0
R
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0x00
–
R
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
S1C31D41 TECHNICAL MANUAL
32
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Remarks
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