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參數(shù)資料
| 型號： | R2023K |
| 廠商： | Ricoh Co., Ltd. |
| 英文描述： | 2-wire Serial Interface Real Time Clock IC |
| 中文描述： | 2線串行接口實時時鐘芯片 |
| 文件頁數(shù)： | 48/50頁 |
| 文件大?。?/td> | 512K |
| 代理商： | R2023K |
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R2023K/T
48
Reading Time and Calendar Data
(1) Ordinary Process of Reading Time and Calendar Data
Read from Time Counter
and Calendar Counter
*2)
Stop Condition
Start Condition
*1)
(2) Basic Process of Reading Time and Calendar Data with Periodic Interrupt Function
*2)
Other Interrupt
Processes
Set Periodic Interrupt
Cycle Selection Bits
CTFG=1
Yes
Read from Time Counter
and Calendar Counter
No
Control Register 2
←
(X1X1X011)
Generate Interrupt in CPU
*1)
*3)
*1) When reading to clock and calendar counters, do not insert
Stop Condition until all times from second to year have been
written to prevent error in writing time. (Detailed in "P.28 Data
Transmission under Special Condition".
*2) Take care so that process from Start Condition to Stop
Condition will be complete within 0.5sec. (Detailed in "P.28
Data Transmission under Special Condition".
*1) This step is intended to select the level mode
as a waveform mode for the periodic interrupt
function.
*2) This step must be completed within 0.5
second.
*3) This step is intended to set the CTFG bit to 0
in the Control Register 2 to cancel an interrupt to
the CPU.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| R2023K-E2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2-wire Serial Interface Real Time Clock IC |
| R2023T | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2-wire Serial Interface Real Time Clock IC |
| R2023T-E2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2-wire Serial Interface Real Time Clock IC |
| R2-0257-02 | 制造商:Southco 功能描述: |
| R2-0259-02 | 制造商:Southco 功能描述: |
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