UPD4991ACX Renesas Electronics America, UPD4991ACX Datasheet - Page 45

• Manufacturer Part Number: UPD4991ACX
• Manufacturer: Renesas Electronics America

Specifications of UPD4991ACX

• Lead Free Status / RoHS Status: Supplier Unconfirmed

(4) Reading two times
Read the time data two times. If the two values coincide, take that value as the correct value. This procedure
is shown in Figure 3-6.
No
Figure 3-6. Reading Time Two Times
CHAPTER 3 ACCESS PROCEDURE
BASIC TIME MODE
Memory 1 = Memory 2
Second reading
First reading
Memory 1
Memory 2
Select
Start
End
?
Yes
Address 0F
H
0
H
or 3
H
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