7 I/O PORTS (PPORT)
Register name
Bit
P1MODSEL
15–8 –
(P1 Port Mode Select
7
Register)
6
5
4
3
2
1
0
P1FNCSEL
15–14 P17MUX[1:0]
(P1 Port Function
13–12 P16MUX[1:0]
Select Register)
11–10 P15MUX[1:0]
9–8 P14MUX[1:0]
7–6 P13MUX[1:0]
5–4 P12MUX[1:0]
3–2 P11MUX[1:0]
1–0 P10MUX[1:0]
P1SELy = 0
Port
P1yMUX = 0x0
name
GPIO
(Function 0)
Peripheral
P10
P10
–
P11
P11
–
P12
P12
–
P13
P13
CLG
P14
P14
–
P15
P15
–
P16
P16
–
P17
P17
–
*1: Refer to the "Universal Port Multiplexer" chapter.
7.7.3 P2 Port Group
The P2 port group supports the GPIO and interrupt functions.
Register name
Bit
P2DAT
15
(P2 Port Data
14
Register)
13
12
11
10
9
8
7
6
5
4
3
2
1
0
7-16
Bit name
Initial
0x00
P1SEL7
0
P1SEL6
0
P1SEL5
0
P1SEL4
0
P1SEL3
0
P1SEL2
0
P1SEL1
0
P1SEL0
0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
Table 7.7.2.2 P1 Port Group Function Assignment
P1yMUX = 0x1
(Function 1)
Pin
Peripheral
–
UPMUX
–
UPMUX
–
UPMUX
FOUT
UPMUX
–
UPMUX
–
UPMUX
–
UPMUX
–
UPMUX
Table 7.7.3.1 Control Registers for P2 Port Group
Bit name
Initial
P2OUT7
0
P2OUT6
0
P2OUT5
0
P2OUT4
0
P2OUT3
0
P2OUT2
0
P2OUT1
0
P2OUT0
0
P2IN7
0
P2IN6
0
P2IN5
0
P2IN4
0
P2IN3
0
P2IN2
0
P2IN1
0
P2IN0
0
Seiko Epson Corporation
Reset
R/W
–
R
–
H0
R/W
–
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
–
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
P1SELy = 1
P1yMUX = 0x2
(Function 2)
Pin
Peripheral
Pin
ADC12A
ADIN06
*1
ADC12A
ADIN05
*1
ADC12A
ADIN04
*1
ADC12A
ADIN03
*1
ADC12A
ADIN02
*1
ADC12A
ADIN01
*1
ADC12A
ADIN00
*1
ADC12A/
VREFA0
*1
TSRVR
Reset
R/W
H0
R/W
–
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R/W
H0
R
–
H0
R
H0
R
H0
R
H0
R
H0
R
H0
R
H0
R
32
48
Remarks
pin
pin
–
–
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
–
–
–
–
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
–
–
–
–
32
48
P1yMUX = 0x3
pin
pin
(Function 3)
Peripheral
Pin
–
–
–
–
–
–
–
–
–
–
✓
✓
–
–
✓
✓
–
–
✓
✓
–
–
✓
✓
–
–
✓
✓
–
–
✓
✓
32
48
Remarks
pin
pin
–
–
–
–
–
–
–
–
–
✓
–
✓
–
✓
✓
✓
–
–
–
–
–
–
–
–
–
✓
–
✓
–
✓
✓
✓
S1C31D41 TECHNICAL MANUAL
(Rev. 1.1)
64
pin
–
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
64
pin
✓
✓
✓
✓
✓
✓
✓
✓
64
pin
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓