APPENDIX A LIST OF PERIPHERAL CIRCUIT CONTROL REGISTERS
AP-A-16
Seiko Epson Corporation
S1C31D50/D51 TECHNICAL MANUAL
(Rev. 2.00)
Address
Register name
Bit
Bit name
Initial
Reset
R/W
Remarks
48
pin
64
pin
80
pin
100
pin
0x0020
0254
P5RCTL
(P5 Port Pull-up/down
Control Register)
15 P5PDPU7
0
H0
R/W –
– – –
✓
14 P5PDPU6
0
H0
R/W
– – –
✓
13 P5PDPU5
0
H0
R/W
– – –
✓
12 P5PDPU4
0
H0
R/W
– – –
✓
11 P5PDPU3
0
H0
R/W
– –
✓
✓
10 P5PDPU2
0
H0
R/W
– –
✓
✓
9
P5PDPU1
0
H0
R/W
✓
✓
✓
✓
8
P5PDPU0
0
H0
R/W
✓
✓
✓
✓
7
P5REN7
0
H0
R/W –
– – –
✓
6
P5REN6
0
H0
R/W
– – –
✓
5
P5REN5
0
H0
R/W
– – –
✓
4
P5REN4
0
H0
R/W
– – –
✓
3
P5REN3
0
H0
R/W
– –
✓
✓
2
P5REN2
0
H0
R/W
– –
✓
✓
1
P5REN1
0
H0
R/W
✓
✓
✓
✓
0
P5REN0
0
H0
R/W
✓
✓
✓
✓
0x0020
0256
P5INTF
(P5 Port Interrupt
Flag Register)
15–8 –
0x00
–
R
–
– – – –
7
P5IF7
0
H0
R/W Cleared by
writing 1.
– – –
✓
6
P5IF6
0
H0
R/W
– – –
✓
5
P5IF5
0
H0
R/W
– – –
✓
4
P5IF4
0
H0
R/W
– – –
✓
3
P5IF3
0
H0
R/W
– –
✓
✓
2
P5IF2
0
H0
R/W
– –
✓
✓
1
P5IF1
0
H0
R/W
✓
✓
✓
✓
0
P5IF0
0
H0
R/W
✓
✓
✓
✓
0x0020
0258
P5INTCTL
(P5 Port Interrupt
Control Register)
15 P5EDGE7
0
H0
R/W –
– – –
✓
14 P5EDGE6
0
H0
R/W
– – –
✓
13 P5EDGE5
0
H0
R/W
– – –
✓
12 P5EDGE4
0
H0
R/W
– – –
✓
11 P5EDGE3
0
H0
R/W
– –
✓
✓
10 P5EDGE2
0
H0
R/W
– –
✓
✓
9
P5EDGE1
0
H0
R/W
✓
✓
✓
✓
8
P5EDGE0
0
H0
R/W
✓
✓
✓
✓
7
P5IE7
0
H0
R/W –
– – –
✓
6
P5IE6
0
H0
R/W
– – –
✓
5
P5IE5
0
H0
R/W
– – –
✓
4
P5IE4
0
H0
R/W
– – –
✓
3
P5IE3
0
H0
R/W
– –
✓
✓
2
P5IE2
0
H0
R/W
– –
✓
✓
1
P5IE1
0
H0
R/W
✓
✓
✓
✓
0
P5IE0
0
H0
R/W
✓
✓
✓
✓
0x0020
025a
P5CHATEN
(P5 Port Chattering
Filter Enable Register)
15–8 –
0x00
–
R
–
– – – –
7
P5CHATEN7
0
H0
R/W –
– – –
✓
6
P5CHATEN6
0
H0
R/W
– – –
✓
5
P5CHATEN5
0
H0
R/W
– – –
✓
4
P5CHATEN4
0
H0
R/W
– – –
✓
3
P5CHATEN3
0
H0
R/W
– –
✓
✓
2
P5CHATEN2
0
H0
R/W
– –
✓
✓
1
P5CHATEN1
0
H0
R/W
✓
✓
✓
✓
0
P5CHATEN0
0
H0
R/W
✓
✓
✓
✓