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參數(shù)資料
| 型號： | RS5C321B |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | XO, clock |
| 英文描述： | ULTRA-COMPACT SERIAL REAL-TIME CLOCK ICs WITH 32.768kHz |
| 中文描述： | 0 TIMER(S), REAL TIME CLOCK, PDSO8 |
| 封裝： | 0.65 MM PITCH, SSOP-8 |
| 文件頁數(shù)： | 12/33頁 |
| 文件大?。?/td> | 252K |
| 代理商： | RS5C321B |
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RS5C321A/B
8
2. Registers
2.1 Control Register 1 (at Eh)
D3
D2
D1
D0
0
0
XSTP
BSY
—
—
WTEN
ADJ
(For write operation)
(For read operation)
±30-second Adjustment Bit
ADJ
Description
0
1
Ordinary operation
Second digit adjustment
BSY
Description
0
1
Ordinary operation
Second digit carry or adjustment
Clock/Counter Busy-state Indication Bit
WTEN
Description
0
1
Disabling of 1-second digit carry for clock counter
Enabling of 1-second digit carry for clock counter
Clock Counter Enable/Disable Setting Bit
XSTP
Description
0
1
Ordinary oscillation
Oscillator halt sensing
Oscillator Halt Sensing Bit
2.1-1 (ADJ)
The following operations are performed by setting the ADJ bit to 1.
After this bit is set to 1, the BSY bit is set to 1 for the maximum duration of 122.1μs.
If the WTEN bit is 0, these adjustment operations are started after the WTEN bit is set to 1.
1) For second digits ranging from “00” to “29” seconds:
Time counters smaller than seconds are reset and second digits are set to “00”.
2) For second digits ranging from “30” to “59” seconds:
Time counters smaller than seconds are reset and second digits are set to “00”. Minute digits are incremented by 1.
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