P4 Port Group - Epson Arm S1C31 Series Technical Manual

P3SELy = 0
Port
P3yMUX = 0x0
name
GPIO (Function 0)
Peripheral
P30 P30 –
P31 P31 T16B Ch.1
P32 P32 T16B Ch.1
P33 P33 RFC
P34 P34 REMC3
P35 P35 REMC3
P36 P36 –
P37 P37 –
*1: Refer to the "Universal Port Multiplexer" chapter.

7.7.5 P4 Port Group

The P4 port group supports the GPIO and interrupt functions.
Register name Bit
P4DAT 15–14 –
(P4 Port Data
13
Register)
12
11
10
9
8
7–6 –
5
4
3
2
1
0
P4IOEN 15–14 –
(P4 Port Enable
13
Register)
12
11
10
9
8
7–6 –
5
4
3
2
1
0
S1C31D41 TECHNICAL MANUAL
(Rev. 1.1)
Table 7.7.4.2 P3 Port Group Function Assignment
P3yMUX = 0x1
(Function 1)
Pin Peripheral
– UPMUX
EXCL10 UPMUX
EXCL11 UPMUX
RFCLKO0 UPMUX
REMO UPMUX
CLPLS UPMUX
– UPMUX
– UPMUX
Table 7.7.5.1 Control Registers for P4 Port Group
Bit name Initial
0x0
P4OUT5 0
P4OUT4 0
P4OUT3 0
P4OUT2 0
P4OUT1 0
P4OUT0 0
0x0
P4IN5 0
P4IN4 0
P4IN3 0
P4IN2 0
P4IN1 0
P4IN0 0
0x0
P4IEN5 0
P4IEN4 0
P4IEN3 0
P4IEN2 0
P4IEN1 0
P4IEN0 0
0x0
P4OEN5 0
P4OEN4 0
P4OEN3 0
P4OEN2 0
P4OEN1 0
P4OEN0 0
Seiko Epson Corporation
P3SELy = 1
P3yMUX = 0x2
(Function 2)
Pin Peripheral Pin
– –
*1
– –
*1
– –
*1
– –
*1
– –
*1
– –
*1
– –
*1
– –
*1
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)
32 48
P3yMUX = 0x3
pin pin
(Function 3)
Peripheral Pin
– – – –
– –
✓ ✓
– –
✓ ✓
– – –
✓
– – –
✓
– – –
✓
– – – –
– – – –
32 48
Remarks
pin pin
– –
–
✓
✓ ✓
✓ ✓
✓ ✓
– –
– –
– –
–
✓
✓ ✓
✓ ✓
✓ ✓
– –
– –
– –
–
✓
✓ ✓
✓ ✓
✓ ✓
– –
– –
– –
–
✓
✓ ✓
✓ ✓
✓ ✓
– –
– –
64
pin
✓
✓
✓
✓
✓
✓
✓
✓
64
pin
–
✓
✓
✓
✓
✓
✓
–
✓
✓
✓
✓
✓
✓
–
✓
✓
✓
✓
✓
✓
–
✓
✓
✓
✓
✓
✓
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