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APPENDIX A LIST OF PERIPHERAL CIRCUIT CONTROL REGISTERS
0x40c0–0x40c8
Address
Register name
0x40c0 RTCCTL
(RTC Control
Register)
0x40c2 RTCINTE
(RTC Interrupt Enable
Register)
0x40c4 RTCINTF
(RTC Interrupt Flag
Register)
0x40c6 RTCMIN
(RTC Minute/Second
Register)
0x40c8 RTCHUR
(RTC Hour Register)
0x4100–0x4106
Address
Register name
0x4100 SVDCLK
(SVD Clock Control
Register)
0x4102 SVDCTL
(SVD Control
Register)
aP-a-4
Bit
Bit name
15–9 –
8
RTCST
7–6 –
5
BCDMD
4
RTC24H
3–1 –
0
RTCRUN
15–10 –
9
1DIE
8
HDIE
7
1HIE
6
10MIE
5
1MIE
4
10SIE
3
1HZIE
2
4HZIE
1
8HZIE
0
32HZIE
15–10 –
9
1DIF
8
HDIF
7
1HIF
6
10MIF
5
1MIF
4
10SIF
3
1HZIF
2
4HZIF
1
8HZIF
0
32HZIF
15
–
14–8 RTCMIN[6:0]
7
–
6–0 RTCSEC[6:0]
15–8 –
7
AMPM
6
–
5–0 RTCHUR[5:0]
Bit
Bit name
15–9 –
8
DBRUN
7
–
6–4 CLKDIV[2:0]
3–2 –
1–0 CLKSRC[1:0]
15
VDSEL
14–13 SVDSC[1:0]
12–8 SVDC[4:0]
7–4 SVDRE[3:0]
3
–
2–1 SVDMD[1:0]
0
MODEN
Seiko epson Corporation
Real-time Clock (RTC)
Initial
Reset
R/W
0x00
–
R
0
H0
R
0x0
–
R
0
H0
R/W
0
H0
R/W
0x0
–
R
0
H0
R/W
0x00
–
R
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0x00
–
R
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
H0
R/W
0
–
R
x
–
R/W
0
–
R
x
–
R/W
0x00
–
R
x
–
R/W
0
–
R
x
–
R/W
Supply Voltage Detector (SVD)
Initial
Reset
R/W
0x00
–
R
1
H0
R/WP
0
–
R
0x0
H0
R/WP
0x0
–
R
0x0
H0
R/WP
0
H1
R/WP –
0x0
H0
R/WP Writing takes effect when
0x00
H1
R/WP –
0x0
H1
R/WP
0
–
R
0x0
H0
R/WP
0
H1
R/WP
S1C17F13 TeChniCal Manual
Remarks
–
–
–
Cleared by writing 1.
–
–
Remarks
–
the SVDCTL.SVDMD[1:0]
bits are not 0x0.
(Rev. 1.0)
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