APPENDIX A LIST OF PERIPHERAL CIRCUIT CONTROL REGISTERS
Address
Register name
0x0020
PAINTF
02a6
(Pa Port Interrupt
Flag Register)
0x0020
PAINTCTL
02a8
(Pa Port Interrupt
Control Register)
0x0020
PACHATEN
02aa
(Pa Port Chattering
Filter Enable Register)
0x0020
PAMODSEL
02ac
(Pa Port Mode Select
Register)
0x0020
PAFNCSEL
02ae
(Pa Port Function
Select Register)
AP-A-26
Bit
Bit name
15–8 –
7
–
6
PAIF6
5
PAIF5
4
PAIF4
3
PAIF3
2
PAIF2
1
PAIF1
0
PAIF0
15
–
14
PAEDGE6
13
PAEDGE5
12
PAEDGE4
11
PAEDGE3
10
PAEDGE2
9
PAEDGE1
8
PAEDGE0
7
–
6
PAIE6
5
PAIE5
4
PAIE4
3
PAIE3
2
PAIE2
1
PAIE1
0
PAIE0
15–8 –
7
–
6
PACHATEN6
5
PACHATEN5
4
PACHATEN4
3
PACHATEN3
2
PACHATEN2
1
PACHATEN1
0
PACHATEN0
15–8 –
7
–
6
PASEL6
5
PASEL5
4
PASEL4
3
PASEL3
2
PASEL2
1
PASEL1
0
PASEL0
15–14 –
13–12 PA6MUX[1:0]
11–10 PA5MUX[1:0]
9–8 PA4MUX[1:0]
7–6 PA3MUX[1:0]
5–4 PA2MUX[1:0]
3–2 PA1MUX[1:0]
1–0 PA0MUX[1:0]
Seiko Epson Corporation
Initial
Reset
R/W
0x00
–
R
0
–
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
–
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
–
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
0x00
–
R
0
–
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
0x00
–
R
0
–
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
0x0
–
R
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
S1C31D50/D51 TECHNICAL MANUAL
48
64
80
100
Remarks
pin
pin
pin
pin
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Cleared by
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–
✓
writing 1.
–
–
–
✓
–
–
✓ ✓
✓
✓
✓ ✓
–
✓
✓ ✓
–
✓
✓ ✓
–
–
✓ ✓
–
–
–
–
–
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–
–
✓
–
–
–
✓
–
–
✓ ✓
✓
✓
✓ ✓
–
✓
✓ ✓
–
✓
✓ ✓
–
–
✓ ✓
–
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–
✓
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–
–
✓
–
–
✓ ✓
✓
✓
✓ ✓
–
✓
✓ ✓
–
✓
✓ ✓
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✓ ✓
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✓
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✓
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✓ ✓
✓
✓
✓ ✓
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✓
✓ ✓
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✓
✓ ✓
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✓ ✓
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✓
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✓
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–
✓ ✓
✓
✓
✓ ✓
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✓
✓ ✓
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✓
✓ ✓
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✓ ✓
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–
✓
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–
✓
–
–
✓ ✓
✓
✓
✓ ✓
–
✓
✓ ✓
–
✓
✓ ✓
–
–
✓ ✓
(Rev. 2.00)
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