s-35190a Seiko Instruments Inc., s-35190a Datasheet - Page 31

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

Rev.2.4
(2) Real-time data 2 access
(3) Status register 1 access and status register 2 access
*1. 0 : Status register 1 selected
During reading: Output mode switching
SCK
_00
1 : Status register 2 selected
SIO
CS
X
0
1
Figure 36 Status Register 1 Access and Status Register 2 Access
Fixed code +
1
command
1
SCK
SIO
0
CS
0
1
1
X
8
B7
Figure 35 Real-Time Data 2 Access
R / W
0
Hour data
Fixed code +
1
1
command
1
During reading: Output mode switching
Seiko Instruments Inc.
0
*1
0
B0
0
16
B7
Minute data
8
B7
R / W
Status data
B0
24
B7
16
Second data
B0
3-WIRE REAL-TIME CLOCK
32
B0
During reading:
Input mode switching
During reading:
Input mode switching
S-35190A
31