7 I/O PORTS (PPORT)
S1C31D50/D51 TECHNICAL MANUAL
Seiko Epson Corporation
7-25
(Rev. 2.00)
Register name
Bit
Bit name
Initial
Reset
R/W
Remarks
48
pin
64
pin
80
pin
100
pin
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
✓
✓
✓
✓
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
✓
✓
✓
✓
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
✓
✓
✓
✓
P5MODSEL
(P5 Port Mode Select
Register)
15–8 –
0x00
–
R
–
– – – –
7
P5SEL7
0
H0
R/W –
– – –
✓
6
P5SEL6
0
H0
R/W
– – –
✓
5
P5SEL5
0
H0
R/W
– – –
✓
4
P5SEL4
0
H0
R/W
– – –
✓
3
P5SEL3
0
H0
R/W
– –
✓
✓
2
P5SEL2
0
H0
R/W
– –
✓
✓
1
P5SEL1
1
H0
R/W
✓
✓
✓
✓
0
P5SEL0
1
H0
R/W
✓
✓
✓
✓
P5FNCSEL
(P5 Port Function
Select Register)
15–14 P57MUX[1:0]
0x0
H0
R/W –
– – –
✓
13–12 P56MUX[1:0]
0x0
H0
R/W
– – –
✓
11–10 P55MUX[1:0]
0x0
H0
R/W
– – –
✓
9–8 P54MUX[1:0]
0x0
H0
R/W
– – –
✓
7–6 P53MUX[1:0]
0x0
H0
R/W
– –
✓
✓
5–4 P52MUX[1:0]
0x0
H0
R/W
– –
✓
✓
3–2 P51MUX[1:0]
0x0
H0
R/W
✓
✓
✓
✓
1–0 P50MUX[1:0]
0x0
H0
R/W
✓
✓
✓
✓