P4 Port Group - Epson S1C31D50 Technical Manual

Register name Bit
P3MODSEL 15–8 –
(P3 Port Mode Select
7
Register)
6
5
4
3
2
1
0
P3FNCSEL 15–14 P37MUX[1:0]
(P3 Port Function
13–12 P36MUX[1:0]
Select Register)
11–10 P35MUX[1:0]
9–8 P34MUX[1:0]
7–6 P33MUX[1:0]
5–4 P32MUX[1:0]
3–2 P31MUX[1:0]
1–0 P30MUX[1:0]
P3SELy = 0
Port
P3yMUX = 0x0
name GPIO
(Function 0)
Peripheral
P30 P30 RFC
P31 P31 REMC3
P32 P32 REMC3
P33 P33 –
P34 P34 –
P35 P35 –
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
(P4 Port Data
14
Register)
13
12
11
10
9
8
7
6
5
4
3
2
1
0
S1C31D50/D51 TECHNICAL MANUAL
(Rev. 2.00)
Bit name Initial
0x00
P3SEL7 0
P3SEL6 0
P3SEL5 0
P3SEL4 0
P3SEL3 0
P3SEL2 0
P3SEL1 0
P3SEL0 0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
Table 7.7.4.2 P3 Port Group Function Assignment
P3yMUX = 0x1
(Function 1)
Pin Peripheral
RFCLKO0 UPMUX
REMO UPMUX
CLPLS UPMUX
– UPMUX
– UPMUX
– UPMUX
– UPMUX
– UPMUX
Table 7.7.5.1 Control Registers for P4 Port Group
Bit name Initial
P4OUT7 0
P4OUT6 0
P4OUT5 0
P4OUT4 0
P4OUT3 0
P4OUT2 0
P4OUT1 0
P4OUT0 0
P4IN7 0
P4IN6 0
P4IN5 0
P4IN4 0
P4IN3 0
P4IN2 0
P4IN1 0
P4IN0 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
P3SELy = 1
P3yMUX = 0x2
(Function 2)
Pin Peripheral Pin
– –
*1
– –
*1
– –
*1
– –
*1
*1 – –
– –
*1
– –
*1
– –
*1
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
7 I/O PORTS (PPORT)
48 64
Remarks
pin pin
– –
– –
– –
– –
–
✓
–
✓
✓ ✓
✓ ✓
✓ ✓
– –
– –
– –
–
✓
–
✓
✓ ✓
✓ ✓
✓ ✓
P3yMUX = 0x3
48 64
(Function 3)
pin pin
Peripheral Pin
– –
✓ ✓
– –
✓ ✓
– –
✓ ✓
– – –
✓
– – –
✓
– – – –
– – – –
– – – –
48 64
Remarks
pin pin
– –
✓ ✓
✓ ✓
–
✓
–
✓
– –
– –
✓ ✓
– –
✓ ✓
✓ ✓
–
✓
–
✓
– –
– –
✓ ✓
80 100
pin pin
– –
–
✓
–
✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
–
✓
–
✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
80 100
pin pin
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
–
✓
–
✓
80 100
pin pin
–
✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
–
✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
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