Epson S1C17M20 Technical Manual page 287

Address Register name
0x4220 P2DAT
(P2 Port Data
Register)
0x4222 P2IOEN
(P2 Port Enable
Register)
0x4224 P2RCTL
(P2 Port Pull-up/down
Control Register)
0x4226 P2INTF
(P2 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 P2OUT7
14 P2OUT6
13 P2OUT5
12 P2OUT4
11 P2OUT3
10 P2OUT2
9 P2OUT1
8 P2OUT0
7 P2IN7
6 P2IN6
5 P2IN5
4 P2IN4
3 P2IN3
2 P2IN2
1 P2IN1
0 P2IN0
15 P2IEN7
14 P2IEN6
13 P2IEN5
12 P2IEN4
11 P2IEN3
10 P2IEN2
9 P2IEN1
8 P2IEN0
7 P2OEN7
6 P2OEN6
5 P2OEN5
4 P2OEN4
3 P2OEN3
2 P2OEN2
1 P2OEN1
0 P2OEN0
15 P2PDPU7
14 P2PDPU6
13 P2PDPU5
12 P2PDPU4
11 P2PDPU3
10 P2PDPU2
9 P2PDPU1
8 P2PDPU0
7 P2REN7
6 P2REN6
5 P2REN5
4 P2REN4
3 P2REN3
2 P2REN2
1 P2REN1
0 P2REN0
15–8 –
7 P2IF7
6 P2IF6
5 P2IF5
4 P2IF4
3 P2IF3
2 P2IF2
1 P2IF1
0 P2IF0
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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✓
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✓
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✓ ✓ ✓ ✓
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– – –
✓
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✓
– – – – –
Cleared
✓ ✓ ✓ ✓
by writing
✓ ✓ ✓ ✓
1.
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
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✓ ✓ ✓
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✓ ✓ ✓
– – –
✓
– – –
✓
AP-A-11