MSM62X42B Просмотр технического описания (PDF) - Oki Electric Industry

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MSM62X42B

REAL TIME CLOCK IC WITH BUILT-IN CRYSTAL

Oki Electric Industry 

MSM62X42B

¡ Semiconductor

Reading and Writing of Registers S1 ~ W and Writing of 30-Second ADJ Bit

Registers S1 ~ W (Addresses 0 ~ C)

Reading and writing in the case of using HOLD bit

HOLD bit ¨ 1

READ BUSY bit

*

NO

BUSY bit = 0 ?

YES

HOLD bit ¨ 0

Write data into or

Read data from

registers S1~W

Idling time

HOLD bit ¨ 0

* In the inside of LSI, the CLEAR of BUSY bit is performed when

HOLD bit = 0, but, if the period of HOLD bit =0 is extermely

narrow as compared with the period of HOLD bit = 1, there is

some case that the CLEAR of BUSY bit delays so that the

BUSY bit can be cleared by sampling HOLD bit = 0 at approximate

16KHz. It is recommended to allow an idling time of 62ms or more.

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