s-35199a01 Seiko Instruments Inc., s-35199a01 Datasheet - Page 24

• Manufacturer Part Number: s-35199a01
• Description: 3-wire Real-time Clock
• Manufacturer: Seiko Instruments Inc.

24
3-WIRE REAL-TIME CLOCK
S-35199A01
Register Status After Initialization
The status of each register after initialization is as follows.
Real-time data register :
Status register 1 :
Status register 2 :
INT register 1 :
INT register 2 :
Clock correction register :
Free register :
Up counter :
FOUT setting register 1 :
FOUT setting register 2 :
Alarm expansion register 1 :
Alarm expansion register 2 :
SCK
SIO
CS
X
Code + command
0
1
Write to status register 1
1
0
Write “1” to reset flag and
Figure 28 Data of Status Register 1 at Initialization
0
0
0 0
00 (Y), 01 (M), 01 (D), 0 (day of the week), 00 (H), 00 (M), 00 (S)
“0 B6 B5 B4 0 0 0 0 b”
(In B6, B5, B4, the data of B6, B5, B6 in the status register 1 at initialization is set.
Refer to Figure 28 .)
“00h”
“00h”
“00h”
“00h”
“00h”
Is not initialized and continues counting.
“00h”
“00h”
“00h”
“00h”
B7
1
SC0.
0
B5
1
Seiko Instruments Inc.
0
0
0
0
0
Code + command
0
1
Read from status register 1
1
0
0
0
0 1
0
0
B5 : Not reset
1
0
0
0
0
0
Rev.1.0
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