Epson S1C17M20 Technical Manual page 289

Address Register name
0x4230 P3DAT
(P3 Port Data
Register)
0x4232 P3IOEN
(P3 Port Enable
Register)
0x4234 P3RCTL
(P3 Port Pull-up/down
Control Register)
0x4236 P3INTF
(P3 Port Interrupt
Flag Register)
S1C17M20/M21/M22/M23/M24/M25
TECHNICAL MANUAL (Rev. 1.0)
APPENDIX A LIST OF PERIPHERAL CIRCUIT CONTROL REGISTERS
Bit Bit name
15 P3OUT7
14 P3OUT6
13 P3OUT5
12 P3OUT4
11 P3OUT3
10 P3OUT2
9 P3OUT1
8 P3OUT0
7 P3IN7
6 P3IN6
5 P3IN5
4 P3IN4
3 P3IN3
2 P3IN2
1 P3IN1
0 P3IN0
15 P3IEN7
14 P3IEN6
13 P3IEN5
12 P3IEN4
11 P3IEN3
10 P3IEN2
9 P3IEN1
8 P3IEN0
7 P3OEN7
6 P3OEN6
5 P3OEN5
4 P3OEN4
3 P3OEN3
2 P3OEN2
1 P3OEN1
0 P3OEN0
15 P3PDPU7
14 P3PDPU6
13 P3PDPU5
12 P3PDPU4
11 P3PDPU3
10 P3PDPU2
9 P3PDPU1
8 P3PDPU0
7 P3REN7
6 P3REN6
5 P3REN5
4 P3REN4
3 P3REN3
2 P3REN2
1 P3REN1
0 P3REN0
15–8 –
7 P3IF7
6 P3IF6
5 P3IF5
4 P3IF4
3 P3IF3
2 P3IF2
1 P3IF1
0 P3IF0
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
M20/M23 M21/ M22/
Remarks
24pin 32pin M24 M25
– – – –
✓
– – –
✓
– – –
✓
– – –
✓
– – –
✓
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
– – – –
✓
– – –
✓
– – –
✓
– – –
✓
– – –
✓
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
– – – –
✓
– – –
✓
– – –
✓
– – –
✓
– – –
✓
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
– – – –
✓
– – –
✓
– – –
✓
– – –
✓
– – –
✓
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
– – – –
✓
– – –
✓
– – –
✓
– – –
✓
– – –
✓
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
– – – –
✓
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✓
– – –
✓
– – –
✓
– – –
✓
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
– – – – –
Cleared – – –
✓
by writing
– – –
✓
1.
– – –
✓
– – –
✓
– – –
✓
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
AP-A-13