Address
Register name
0x0020
UPMUXP1MUX2
030c
(P14–15 Universal
Port Multiplexer
Setting Register)
0x0020
UPMUXP1MUX3
030e
(P16–17 Universal
Port Multiplexer
Setting Register)
0x0020
UPMUXP2MUX0
0310
(P20–21 Universal
Port Multiplexer
Setting Register)
0x0020
UPMUXP2MUX1
0312
(P22–23 Universal
Port Multiplexer
Setting Register)
0x0020
UPMUXP2MUX2
0314
(P24–25 Universal
Port Multiplexer
Setting Register)
0x0020
UPMUXP2MUX3
0316
(P26–27 Universal
Port Multiplexer
Setting Register)
0x0020
UPMUXP3MUX0
0318
(P30–31 Universal
Port Multiplexer
Setting Register)
0x0020
UPMUXP3MUX1
031a
(P32–33 Universal
Port Multiplexer
Setting Register)
0x0020
UPMUXP3MUX2
031c
(P34–35 Universal
Port Multiplexer
Setting Register)
S1C31D50/D51 TECHNICAL MANUAL
(Rev. 2.00)
APPENDIX A LIST OF PERIPHERAL CIRCUIT CONTROL REGISTERS
Bit
Bit name
15–13 P15PPFNC[2:0]
12–11 P15PERICH[1:0]
10–8 P15PERISEL[2:0]
7–5 P14PPFNC[2:0]
4–3 P14PERICH[1:0]
2–0 P14PERISEL[2:0]
15–13 P17PPFNC[2:0]
12–11 P17PERICH[1:0]
10–8 P17PERISEL[2:0]
7–5 P16PPFNC[2:0]
4–3 P16PERICH[1:0]
2–0 P16PERISEL[2:0]
15–13 P21PPFNC[2:0]
12–11 P21PERICH[1:0]
10–8 P21PERISEL[2:0]
7–5 P20PPFNC[2:0]
4–3 P20PERICH[1:0]
2–0 P20PERISEL[2:0]
15–13 P23PPFNC[2:0]
12–11 P23PERICH[1:0]
10–8 P23PERISEL[2:0]
7–5 P22PPFNC[2:0]
4–3 P22PERICH[1:0]
2–0 P22PERISEL[2:0]
15–13 P25PPFNC[2:0]
12–11 P25PERICH[1:0]
10–8 P25PERISEL[2:0]
7–5 P24PPFNC[2:0]
4–3 P24PERICH[1:0]
2–0 P24PERISEL[2:0]
15–13 P27PPFNC[2:0]
12–11 P27PERICH[1:0]
10–8 P27PERISEL[2:0]
7–5 P26PPFNC[2:0]
4–3 P26PERICH[1:0]
2–0 P26PERISEL[2:0]
15–13 P31PPFNC[2:0]
12–11 P31PERICH[1:0]
10–8 P31PERISEL[2:0]
7–5 P30PPFNC[2:0]
4–3 P30PERICH[1:0]
2–0 P30PERISEL[2:0]
15–13 P33PPFNC[2:0]
12–11 P33PERICH[1:0]
10–8 P33PERISEL[2:0]
7–5 P32PPFNC[2:0]
4–3 P32PERICH[1:0]
2–0 P32PERISEL[2:0]
15–13 P35PPFNC[2:0]
12–11 P35PERICH[1:0]
10–8 P35PERISEL[2:0]
7–5 P34PPFNC[2:0]
4–3 P34PERICH[1:0]
2–0 P34PERISEL[2:0]
Seiko Epson Corporation
Initial
Reset
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
0x0
H0
R/W
48
64
80
100
Remarks
pin
pin
pin
pin
–
✓
✓
✓
✓
✓
✓
✓
✓
–
✓
✓
✓
✓
✓
✓
✓
✓
–
✓
✓
✓
✓
✓
✓
✓
✓
–
✓
✓
✓
✓
✓
✓
✓
✓
–
–
✓
✓
✓
–
✓
✓
✓
–
–
✓
✓
✓
–
✓
✓
✓
–
✓
✓
✓
✓
✓
✓
✓
✓
–
–
✓
✓
✓
✓
✓
✓
✓
–
–
–
✓
✓
–
✓
✓
✓
AP-A-29