7 I/O PORTS (PPORT)
S1C31D50/D51 TECHNICAL MANUAL
Seiko Epson Corporation
7-35
(Rev. 2.00)
Register name
Bit
Bit name
Initial
Reset
R/W
Remarks
48
pin
64
pin
80
pin
100
pin
P9FNCSEL
(P9 Port Function
Select Register)
15–12 –
0x0
H0
R/W –
– – – –
11–10 P95MUX[1:0]
0x0
H0
R/W –
✓
✓
✓
✓
9–8 P94MUX[1:0]
0x0
H0
R/W
✓
✓
✓
✓
7–6 P93MUX[1:0]
0x0
H0
R/W
✓
✓
✓
✓
5–4 P92MUX[1:0]
0x0
H0
R/W
✓
✓
✓
✓
3–2 P91MUX[1:0]
0x0
H0
R/W
✓
✓
✓
✓
1–0 P90MUX[1:0]
0x0
H0
R/W
✓
✓
✓
✓
Table 7.7.10.2 P9 Port Group Function Assignment
Port
name
P9SELy = 0
P9SELy = 1
48
pin
64
pin
80
pin
100
pin
GPIO
P9yMUX = 0x0
(Function 0)
P9yMUX = 0x1
(Function 1)
P9yMUX = 0x2
(Function 2)
P9yMUX = 0x3
(Function 3)
Peripheral
Pin
Peripheral
Pin
Peripheral
Pin
Peripheral
Pin
P90
P90
QSPI Ch.0 QSPICLK0
–
–
–
–
–
–
✓
✓
✓
✓
P91
P91
QSPI Ch.0 QSDIO00
–
–
–
–
–
–
✓
✓
✓
✓
P92
P92
QSPI Ch.0 QSDIO01
–
–
–
–
–
–
✓
✓
✓
✓
P93
P93
QSPI Ch.0 QSDIO02
–
–
–
–
–
–
✓
✓
✓
✓
P94
P94
QSPI Ch.0 QSDIO03
–
–
–
–
–
–
✓
✓
✓
✓
P95
P95
QSPI Ch.0 #QSPISS0
–
–
–
–
–
–
✓
✓
✓
✓
7.7.11 Pa Port Group
The Pa port group supports the GPIO and interrupt functions.
Table 7.7.11.1 Control Registers for Pa Port Group
Register name
Bit
Bit name
Initial
Reset
R/W
Remarks
48
pin
64
pin
80
pin
100
pin
PADAT
(Pa Port Data
Register)
15 –
0
–
R
–
– – – –
14 PAOUT6
0
H0
R/W –
– – –
✓
13 PAOUT5
0
H0
R/W
– – –
✓
12 PAOUT4
0
H0
R/W
– –
✓
✓
11 PAOUT3
0
H0
R/W
✓
✓
✓
✓
10 PAOUT2
0
H0
R/W
–
✓
✓
✓
9
PAOUT1
0
H0
R/W
–
✓
✓
✓
8
PAOUT0
0
H0
R/W
– –
✓
✓
7
–
0
–
R
–
– – – –
6
PAIN6
0
H0
R
–
– – –
✓
5
PAIN5
0
H0
R
– – –
✓
4
PAIN4
0
H0
R
– –
✓
✓
3
PAIN3
0
H0
R
✓
✓
✓
✓
2
PAIN2
0
H0
R
–
✓
✓
✓
1
PAIN1
0
H0
R
–
✓
✓
✓
0
PAIN0
0
H0
R
– –
✓
✓
PAIOEN
(Pa Port Enable
Register)
15 –
0
–
R
–
– – – –
14 PAIEN6
0
H0
R/W –
– – –
✓
13 PAIEN5
0
H0
R/W
– – –
✓
12 PAIEN4
0
H0
R/W
– –
✓
✓
11 PAIEN3
0
H0
R/W
✓
✓
✓
✓
10 PAIEN2
0
H0
R/W
–
✓
✓
✓
9
PAIEN1
0
H0
R/W
–
✓
✓
✓
8
PAIEN0
0
H0
R/W
– –
✓
✓
7
–
0
–
R
–
– – – –
6
PAOEN6
0
H0
R/W –
– – –
✓
5
PAOEN5
0
H0
R/W
– – –
✓
4
PAOEN4
0
H0
R/W
– –
✓
✓
3
PAOEN3
0
H0
R/W
✓
✓
✓
✓
2
PAOEN2
0
H0
R/W
–
✓
✓
✓
1
PAOEN1
0
H0
R/W
–
✓
✓
✓
0
PAOEN0
0
H0
R/W
– –
✓
✓