s-35192a Seiko Instruments Inc., s-35192a Datasheet - Page 28

• Manufacturer Part Number: s-35192a
• Description: 3-wire Real-time Clock
• Manufacturer: Seiko Instruments Inc.

28
3-WIRE REAL-TIME CLOCK
S-35192A
(5) Clock correction register access
(6) Free register access
During reading: Output mode switching
During reading: Output mode switching
SCK
SIO
CS
SCK
SIO
CS
Figure 30 Clock Correction Register Access
X
X
0
Fixed code +
1
1
command
0
Figure 31 Free Register Access
Fixed code +
1
1
1
command
0
1
1
Seiko Instruments Inc.
0
1
1
0
1
1
8
B7
R / W
8
Clock correction
data
B7
R / W
Free register data
16
B0
16
B0
During reading:
Input mode switching
During reading:
Input mode switching
Rev.1.2
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