7 I/O PORTS (PPORT)
S1C31D50/D51 TECHNICAL MANUAL
Seiko Epson Corporation
7-33
(Rev. 2.00)
Table 7.7.9.2 P8 Port Group Function Assignment
Port
name
P8SELy = 0
P8SELy = 1
48
pin
64
pin
80
pin
100
pin
GPIO
P8yMUX = 0x0
(Function 0)
P8yMUX = 0x1
(Function 1)
P8yMUX = 0x2
(Function 2)
P8yMUX = 0x3
(Function 3)
Peripheral
Pin
Peripheral
Pin
Peripheral
Pin
Peripheral
Pin
P80
P80
–
–
–
–
–
–
–
–
– –
✓
✓
P81
P81
–
–
–
–
–
–
–
–
–
✓
✓
✓
P82
P82
–
–
–
–
–
–
–
–
–
✓
✓
✓
P83
P83
CLG
EXOSC
–
–
–
–
–
–
✓
✓
✓
✓
P84
P84
T16B Ch.0 EXCL00
–
–
–
–
–
–
✓
✓
✓
✓
P85
P85
T16B Ch.0 EXCL01
–
–
–
–
–
–
✓
✓
✓
✓
P86
P86
–
–
–
–
–
–
–
–
– –
✓
✓
P87
P87
–
–
–
–
–
–
–
–
– –
✓
✓
7.7.10 P9 Port Group
The P9 port group supports the GPIO and interrupt functions.
Table 7.7.10.1 Control Registers for P9 Port Group
Register name
Bit
Bit name
Initial
Reset
R/W
Remarks
48
pin
64
pin
80
pin
100
pin
P9DAT
(P9 Port Data
Register)
15–14 –
0x0
–
R
–
– – – –
13 P9OUT5
0
H0
R/W –
✓
✓
✓
✓
12 P9OUT4
0
H0
R/W
✓
✓
✓
✓
11 P9OUT3
0
H0
R/W
✓
✓
✓
✓
10 P9OUT2
0
H0
R/W
✓
✓
✓
✓
9
P9OUT1
0
H0
R/W
✓
✓
✓
✓
8
P9OUT0
0
H0
R/W
✓
✓
✓
✓
7–6 –
0x0
–
R
–
– – – –
5
P9IN5
0
H0
R
–
✓
✓
✓
✓
4
P9IN4
0
H0
R
✓
✓
✓
✓
3
P9IN3
0
H0
R
✓
✓
✓
✓
2
P9IN2
0
H0
R
✓
✓
✓
✓
1
P9IN1
0
H0
R
✓
✓
✓
✓
0
P9IN0
0
H0
R
✓
✓
✓
✓
P9IOEN
(P9 Port Enable
Register)
15–14 –
0x0
–
R
–
– – – –
13 P9IEN5
0
H0
R/W –
✓
✓
✓
✓
12 P9IEN4
0
H0
R/W
✓
✓
✓
✓
11 P9IEN3
0
H0
R/W
✓
✓
✓
✓
10 P9IEN2
0
H0
R/W
✓
✓
✓
✓
9
P9IEN1
0
H0
R/W
✓
✓
✓
✓
8
P9IEN0
0
H0
R/W
✓
✓
✓
✓
7–6 –
0x0
–
R
–
– – – –
5
P9OEN5
0
H0
R/W –
✓
✓
✓
✓
4
P9OEN4
0
H0
R/W
✓
✓
✓
✓
3
P9OEN3
0
H0
R/W
✓
✓
✓
✓
2
P9OEN2
0
H0
R/W
✓
✓
✓
✓
1
P9OEN1
0
H0
R/W
✓
✓
✓
✓
0
P9OEN0
0
H0
R/W
✓
✓
✓
✓