S-35190A Datasheet, PDF (31/53 Pages) Seiko Instruments Inc – 3-WIRE REAL-TIME CLOCK

Rev.2.4_00
3-WIRE REAL-TIME CLOCK
S-35190A
(2) Real-time data 2 access
CS
1
8
16
24
32
SCK
SIO
X 01100 11
R/W
B7
B0 B7
B0 B7
B0
Fixed code +
command
Hour data Minute data Second data
During reading: Output mode switching
During reading:
Input mode switching
Figure 35 Real-Time Data 2 Access
(3) Status register 1 access and status register 2 access
CS
1
8
16
SCK
*1
R/W
SIO
X 011000
B7
B0
Fixed code +
command
During reading: Output mode switching
Status data
During reading:
Input mode switching
*1. 0 : Status register 1 selected
1 : Status register 2 selected
Figure 36 Status Register 1 Access and Status Register 2 Access
Seiko Instruments Inc.
31