s-35190a Seiko Instruments Inc., s-35190a Datasheet - Page 33

• Manufacturer Part Number: s-35190a
• Description: 3-wire Real-time Clock
• Manufacturer: Seiko Instruments Inc.

Rev.2.4
(5) Clock correction register access
(6) Free register access
During reading: Output mode switching
During reading: Output mode switching
_00
SCK
SIO
SCK
CS
SIO
CS
Figure 39 Clock Correction Register Access
X
X
0
Fixed code +
0
1
1
Fixed code +
command
1
1
Figure 40 Free Register Access
command
1
1
0
0
1
Seiko Instruments Inc.
1
1
1
0
1
8
8
B7
B7
R / W
Clock correction
data
R / W
Free register data
16
16
B0
B0
3-WIRE REAL-TIME CLOCK
During reading:
Input mode switching
During reading:
Input mode switching
S-35190A
33