參數資料
型號: MSM6542-01
廠商: OKI SEMICONDUCTOR CO., LTD.
英文描述: REAL TIME CLOCK WITH PERIODIC AND ALARM OUTPUT
中文描述: 實時時鐘周期和報警輸出
文件頁數: 46/54頁
文件大小: 378K
代理商: MSM6542-01
Semiconductor
MSM6542-010/2/03
113
Method 3 (for each second carry)
(a) Setting (d2, d1, d0) at (1, 0, 1) in method 2 (periodical readout) described above
(b) Polling
Read C
F
register
RF = 1
Idling
N
* 1
* 3
Idling for 3 μs
Read clock registers
Read C
F
register
RF = 0
Discard read
data
Use read data
N
Y
* 2
Y
*1
Processing by other IC or wait time to prevent
unnecessary readouts which occur frequently.
A measure is 50 ms.
*2
Time required to increment the ripple counter
*3
Loop to retry read because of a carry generated
during clock register reading
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