APPENDIX A LIST OF PERIPHERAL CIRCUIT CONTROL REGISTERS
S1C31D50/D51 TECHNICAL MANUAL
Seiko Epson Corporation
AP-A-1
(Rev. 2.00)
Appendix A List of Peripheral Circuit
Control Registers
0x0020 0000
System Register (SYS)
Address
Register name
Bit
Bit name
Initial
Reset
R/W
Remarks
0x0020
0000
SYSPROT
(System
Protect Register)
15–0 PROT[15:0]
0x0000
H0
R/W –
0x0020 0020
Power Generator (PWGA)
Address
Register name
Bit
Bit name
Initial
Reset
R/W
Remarks
0x0020
0020
PWGACTL
(PWGA Control
Register)
15–8 –
0x00
–
R
–
7–6 –
0x0
–
R
5
REGDIS
0
H0
R/WP
4
REGSEL
1
H0
R/WP
3–2 –
0x0
–
R
1–0 REGMODE[1:0]
0x0
H0
R/WP
0x0020 0040–0x0020 0050
Clock Generator (CLG)
Address
Register name
Bit
Bit name
Initial
Reset
R/W
Remarks
0x0020
0040
CLGSCLK
(CLG System Clock
Control Register)
15 WUPMD
0
H0
R/WP –
14 –
0
–
R
13–12 WUPDIV[1:0]
0x0
H0
R/WP
11–10 –
0x0
–
R
9–8 WUPSRC[1:0]
0x0
H0
R/WP
7–6 –
0x0
–
R
5–4 CLKDIV[1:0]
0x2
H0
R/WP
3–2 –
0x0
–
R
1–0 CLKSRC[1:0]
0x0
H0
R/WP
0x0020
0042
CLGOSC
(CLG Oscillation
Control Register)
15–12 –
0x0
–
R
–
11 EXOSCSLPC
1
H0
R/W
10 OSC3SLPC
1
H0
R/W
9
OSC1SLPC
1
H0
R/W
8
IOSCSLPC
1
H0
R/W
7–4 –
0x0
–
R
3
EXOSCEN
0
H0
R/W
2
OSC3EN
0
H0
R/W
1
OSC1EN
0
H0
R/W
0
IOSCEN
1
H0
R/W
0x0020
0044
CLGIOSC
(CLG IOSC Control
Register)
15–8 –
0x00
–
R
–
7–2 –
0x00
–
R
1–0 IOSCFQ[1:0]
0x2
H0
R/WP
0x0020
0046
CLGOSC1
(CLG OSC1 Control
Register)
15 –
0
–
R
–
14 OSDRB
1
H0
R/WP
13 OSDEN
0
H0
R/WP
12 OSC1BUP
1
H0
R/WP
11 OSC1SELCR
0
H0
R/WP
10–8 CGI1[2:0]
0x0
H0
R/WP
7–6 INV1B[1:0]
0x2
H0
R/WP
5–4 INV1N[1:0]
0x1
H0
R/WP
3–2 –
0x0
–
R
1–0 OSC1WT[1:0]
0x2
H0
R/WP