S-35192A-I8T1G SII [Seiko Instruments Inc], S-35192A-I8T1G Datasheet - Page 11

• Manufacturer Part Number: S-35192A-I8T1G
• Description: 3-WIRE REAL-TIME CLOCK
• Manufacturer: SII [Seiko Instruments Inc]

Rev.1.2
Configuration of Register
1. Real-time data register
The real-time data register is a 7-byte register that stores the data of year, month, day, day of the week, hour, minute, and
second in the BCD code. To Write/Read real-time data 1 access, transmit/receive the data of year in B7, month, day, day
of the week, hour, minute, second in B0, in 7-byte. When you skip the procedure to access the data of year, month, day,
day of the week, Read/Write real-time data 2 access. In this case, transmit/receive the data of hour in B7, minute, second
in B0, in 3-byte.
_00
Year data (00 to 99)
M onth data (01 to 12)
Day data (01 to 31)
Day of the week data (00 to 06)
Hour data (00 to 23 or 00 to 11)
M inute data (00 to 59)
Second data (00 to 59)
W 1
M1
m1
Y1
B7
B7
D1
B7
B7
H1
B7
B7
B7
s1
Start bit of real-time data 1 data access
Start bit of real-time data 2 data access
W 2
M2
m2
D2
H2
Y2
s2
Figure 12 Real-time Data Register
W 4
M4
m4
Y4
D4
H4
s4
Seiko Instruments Inc.
M8
m8
D8
H8
Y8
s8
0
M 10
m 10
H10
Y10
D10
s10
0
m20
Y20
D20
H20
s20
0
0
AM / PM
m 40
Y40
s40
0
0
0
3-WIRE REAL-TIME CLOCK
Y80
B0
B0
B0
B0
B0
B0
B0
0
0
0
0
0
0
S-35192A
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