APPENDIX A LIST OF PERIPHERAL CIRCUIT CONTROL REGISTERS
AP-A-18
Seiko Epson Corporation
S1C17M20/M21/M22/M23/M24/M25
TECHNICAL MANUAL (Rev. 1.0)
Address
Register name
Bit
Bit name
Initial
Reset
R/W
Remarks
M20/M23 M21/
M24
M22/
M25
24pin 32pin
0x430e P1UPMUX3
(P16–17 Universal
Port Multiplexer
Setting Register)
15–13 P17PPFNC[2:0]
0x0
H0
R/W –
–
–
–
✓
12–11 P17PERICH[1:0]
0x0
H0
R/W
–
–
–
✓
10–8 P17PERISEL[2:0]
0x0
H0
R/W
–
–
–
✓
7–5 P16PPFNC[2:0]
0x0
H0
R/W
–
–
–
✓
4–3 P16PERICH[1:0]
0x0
H0
R/W
–
–
–
✓
2–0 P16PERISEL[2:0]
0x0
H0
R/W
–
–
–
✓
0x4310 P2UPMUX0
(P20–21 Universal
Port Multiplexer
Setting Register)
15–13 P21PPFNC[2:0]
0x0
H0
R/W –
–
–
–
✓
12–11 P21PERICH[1:0]
0x0
H0
R/W
–
–
–
✓
10–8 P21PERISEL[2:0]
0x0
H0
R/W
–
–
–
✓
7–5 P20PPFNC[2:0]
0x0
H0
R/W
–
–
–
✓
4–3 P20PERICH[1:0]
0x0
H0
R/W
–
–
–
✓
2–0 P20PERISEL[2:0]
0x0
H0
R/W
–
–
–
✓
0x4312 P2UPMUX1
(P22–23 Universal
Port Multiplexer
Setting Register)
15–13 P23PPFNC[2:0]
0x0
H0
R/W –
–
✓
✓
✓
12–11 P23PERICH[1:0]
0x0
H0
R/W
–
✓
✓
✓
10–8 P23PERISEL[2:0]
0x0
H0
R/W
–
✓
✓
✓
7–5 P22PPFNC[2:0]
0x0
H0
R/W
–
✓
✓
✓
4–3 P22PERICH[1:0]
0x0
H0
R/W
–
✓
✓
✓
2–0 P22PERISEL[2:0]
0x0
H0
R/W
–
✓
✓
✓
0x4314 P2UPMUX2
(P24–25 Universal
Port Multiplexer
Setting Register)
15–13 P25PPFNC[2:0]
0x0
H0
R/W –
✓
✓
✓
✓
12–11 P25PERICH[1:0]
0x0
H0
R/W
✓
✓
✓
✓
10–8 P25PERISEL[2:0]
0x0
H0
R/W
✓
✓
✓
✓
7–5 P24PPFNC[2:0]
0x0
H0
R/W
✓
✓
✓
✓
4–3 P24PERICH[1:0]
0x0
H0
R/W
✓
✓
✓
✓
2–0 P24PERISEL[2:0]
0x0
H0
R/W
✓
✓
✓
✓
0x4316 P2UPMUX3
(P26–27 Universal
Port Multiplexer
Setting Register)
15–13 P27PPFNC[2:0]
0x0
H0
R/W –
✓
✓
✓
✓
12–11 P27PERICH[1:0]
0x0
H0
R/W
✓
✓
✓
✓
10–8 P27PERISEL[2:0]
0x0
H0
R/W
✓
✓
✓
✓
7–5 P26PPFNC[2:0]
0x0
H0
R/W
✓
✓
✓
✓
4–3 P26PERICH[1:0]
0x0
H0
R/W
✓
✓
✓
✓
2–0 P26PERISEL[2:0]
0x0
H0
R/W
✓
✓
✓
✓
0x4318 P3UPMUX0
(P30–31 Universal
Port Multiplexer
Setting Register)
15–13 P31PPFNC[2:0]
0x0
H0
R/W –
✓
✓
✓
✓
12–11 P31PERICH[1:0]
0x0
H0
R/W
✓
✓
✓
✓
10–8 P31PERISEL[2:0]
0x0
H0
R/W
✓
✓
✓
✓
7–5 P30PPFNC[2:0]
0x0
H0
R/W
✓
✓
✓
✓
4–3 P30PERICH[1:0]
0x0
H0
R/W
✓
✓
✓
✓
2–0 P30PERISEL[2:0]
0x0
H0
R/W
✓
✓
✓
✓
0x431a P3UPMUX1
(P32–33 Universal
Port Multiplexer
Setting Register)
15–13 P33PPFNC[2:0]
0x0
H0
R/W –
–
–
–
✓
12–11 P33PERICH[1:0]
0x0
H0
R/W
–
–
–
✓
10–8 P33PERISEL[2:0]
0x0
H0
R/W
–
–
–
✓
7–5 P32PPFNC[2:0]
0x0
H0
R/W
✓
✓
✓
✓
4–3 P32PERICH[1:0]
0x0
H0
R/W
✓
✓
✓
✓
2–0 P32PERISEL[2:0]
0x0
H0
R/W
✓
✓
✓
✓
0x431c P3UPMUX2
(P34–35 Universal
Port Multiplexer
Setting Register)
15–13 P35PPFNC[2:0]
0x0
H0
R/W –
–
–
–
✓
12–11 P35PERICH[1:0]
0x0
H0
R/W
–
–
–
✓
10–8 P35PERISEL[2:0]
0x0
H0
R/W
–
–
–
✓
7–5 P34PPFNC[2:0]
0x0
H0
R/W
–
–
–
✓
4–3 P34PERICH[1:0]
0x0
H0
R/W
–
–
–
✓
2–0 P34PERISEL[2:0]
0x0
H0
R/W
–
–
–
✓
0x431e P3UPMUX3
(P36–37 Universal
Port Multiplexer
Setting Register)
15–13 P37PPFNC[2:0]
0x0
H0
R/W –
–
–
–
✓
12–11 P37PERICH[1:0]
0x0
H0
R/W
–
–
–
✓
10–8 P37PERISEL[2:0]
0x0
H0
R/W
–
–
–
✓
7–5 P36PPFNC[2:0]
0x0
H0
R/W
–
–
–
✓
4–3 P36PERICH[1:0]
0x0
H0
R/W
–
–
–
✓
2–0 P36PERISEL[2:0]
0x0
H0
R/W
–
–
–
✓