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