s-35190a Seiko Instruments Inc., s-35190a Datasheet - Page 34

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

34
3-WIRE REAL-TIME CLOCK
S-35190A
Flowchart of Initialization at Power-on and Example of Real-time Data Set-up
Figure 41 shows the flowchart of initialization at power-on and an example of real-time data set-up. Regarding how to apply
power, refer to “
flowchart of real-time data strictly. And if using the default data at initializing, it is also unnecessary to set up again.
Power-on Detection Circuit and Register Status” . It is unnecessary for users to comply with this
NG
display to status register 1
(status register 1 B7 = 1)
Read status register 1
Read status register 1
Read status register 1
Read status register 2
Read real-time data 1
Set 24-hour/12-hour
Confirm data in status
Set real-time data 1
Figure 41 Example of Initialization Flowchart
OK
Wait for 0.5 s
YES
YES
YES
YES
Power-on
POC = 1
TEST = 0
POC = 0
Initialize
BLD = 0
register 1
START
END
Seiko Instruments Inc.
NO
NO
NO
NO
Initialization after power-on
Example of real-time data setting
Rev.2.4
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