7 I/O PORTS (PPORT)
S1C31D50/D51 TECHNICAL MANUAL
Seiko Epson Corporation
7-29
(Rev. 2.00)
Register name
Bit
Bit name
Initial
Reset
R/W
Remarks
48
pin
64
pin
80
pin
100
pin
P7IOEN
(P7 Port Enable
Register)
15 P7IEN7
0
H0
R/W –
– – –
✓
14 P7IEN6
0
H0
R/W
– – –
✓
13 P7IEN5
0
H0
R/W
– – –
✓
12 P7IEN4
0
H0
R/W
– –
✓
✓
11 P7IEN3
0
H0
R/W
✓
✓
✓
✓
10 P7IEN2
0
H0
R/W
✓
✓
✓
✓
9
P7IEN1
0
H0
R/W
–
✓
✓
✓
8
P7IEN0
0
H0
R/W
–
✓
✓
✓
7
P7OEN7
0
H0
R/W –
– – –
✓
6
P7OEN6
0
H0
R/W
– – –
✓
5
P7OEN5
0
H0
R/W
– – –
✓
4
P7OEN4
0
H0
R/W
– –
✓
✓
3
P7OEN3
0
H0
R/W
✓
✓
✓
✓
2
P7OEN2
0
H0
R/W
✓
✓
✓
✓
1
P7OEN1
0
H0
R/W
–
✓
✓
✓
0
P7OEN0
0
H0
R/W
–
✓
✓
✓
P7RCTL
(P7 Port Pull-up/down
Control Register)
15 P7PDPU7
0
H0
R/W –
– – –
✓
14 P7PDPU6
0
H0
R/W
– – –
✓
13 P7PDPU5
0
H0
R/W
– – –
✓
12 P7PDPU4
0
H0
R/W
– –
✓
✓
11 P7PDPU3
0
H0
R/W
✓
✓
✓
✓
10 P7PDPU2
0
H0
R/W
✓
✓
✓
✓
9
P7PDPU1
0
H0
R/W
–
✓
✓
✓
8
P7PDPU0
0
H0
R/W
–
✓
✓
✓
7
P7REN7
0
H0
R/W –
– – –
✓
6
P7REN6
0
H0
R/W
– – –
✓
5
P7REN5
0
H0
R/W
– – –
✓
4
P7REN4
0
H0
R/W
– –
✓
✓
3
P7REN3
0
H0
R/W
✓
✓
✓
✓
2
P7REN2
0
H0
R/W
✓
✓
✓
✓
1
P7REN1
0
H0
R/W
–
✓
✓
✓
0
P7REN0
0
H0
R/W
–
✓
✓
✓
P7INTF
(P7 Port Interrupt
Flag Register)
15–8 –
0x00
–
R
–
– – – –
7
P7IF7
0
H0
R/W Cleared by writing 1.
– – –
✓
6
P7IF6
0
H0
R/W
– – –
✓
5
P7IF5
0
H0
R/W
– – –
✓
4
P7IF4
0
H0
R/W
– –
✓
✓
3
P7IF3
0
H0
R/W
✓
✓
✓
✓
2
P7IF2
0
H0
R/W
✓
✓
✓
✓
1
P7IF1
0
H0
R/W
–
✓
✓
✓
0
P7IF0
0
H0
R/W
–
✓
✓
✓
P7INTCTL
(P7 Port Interrupt
Control Register)
15 P7EDGE7
0
H0
R/W –
– – –
✓
14 P7EDGE6
0
H0
R/W
– – –
✓
13 P7EDGE5
0
H0
R/W
– – –
✓
12 P7EDGE4
0
H0
R/W
– –
✓
✓
11 P7EDGE3
0
H0
R/W
✓
✓
✓
✓
10 P7EDGE2
0
H0
R/W
✓
✓
✓
✓
9
P7EDGE1
0
H0
R/W
–
✓
✓
✓
8
P7EDGE0
0
H0
R/W
–
✓
✓
✓
7
P7IE7
0
H0
R/W –
– – –
✓
6
P7IE6
0
H0
R/W
– – –
✓
5
P7IE5
0
H0
R/W
– – –
✓
4
P7IE4
0
H0
R/W
– –
✓
✓
3
P7IE3
0
H0
R/W
✓
✓
✓
✓
2
P7IE2
0
H0
R/W
✓
✓
✓
✓
1
P7IE1
0
H0
R/W
–
✓
✓
✓
0
P7IE0
0
H0
R/W
–
✓
✓
✓