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參數(shù)資料
| 型號： | R2023T |
| 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(shí)時時鐘芯片 |
| 文件頁數(shù)： | 50/50頁 |
| 文件大?。?/td> | 512K |
| 代理商： | R2023T |
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R2023K/T
Interrupt Process
50
(1) Periodic Interrupt
*2)
Other Interrupt
Processes
Set Periodic Interrupt
Cycle Selection Bits
CTFG=1
Yes
Conduct
Periodic Interrupt
No
Control Register 2
←
(X1X1X011)
Generate Interrupt to CPU
*1)
(2) Alarm Interrupt
*3)
Other Interrupt
Processes
Set Alarm Min., Hr., and
Day-of-week Registers
WAFG or DAFG=1
Conduct Alarm Interrupt
Yes
No
Control Register 2
←
(X1X1X101)
Generate Interrupt to CPU
*1)
WALE or DALE
←
0
*2)
WALE or DALE
←
1
*1) This step is intended to once disable the alarm
interrupt circuit by setting the WALE or DALE bits to
0 in anticipation of the coincidental occurrence of a
match between current time and preset alarm time in
the process of setting the alarm interrupt function.
*2) This step is intended to enable the alarm
interrupt function after completion of all alarm
interrupt settings.
*3) This step is intended to once cancel the alarm
interrupt function by writing the settings of "X,1,X,
1,X,1,0,1" and "X,1,X,1,X,1,1,0" to the Alarm_W
Registers and the Alarm_D Registers, respectively.
*1) This step is intended to select the level mode
as a waveform mode for the periodic interrupt
function.
*2) 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 |
|---|---|
| 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: |
| R2025D | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:High precision I2C-Bus Real-Time Clock Module |
| R2025S | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:High precision I2C-Bus Real-Time Clock Module |
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