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參數(shù)資料
| 型號： | R2051K |
| 英文描述： | real-time clock ICs |
| 中文描述： | 實時時鐘IC |
| 文件頁數(shù)： | 53/53頁 |
| 文件大?。?/td> | 343K |
| 代理商： | R2051K |
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R2051 Series
12345
Rev.1.04 - 53 -
G
Interrupt Process
(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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相關代理商/技術參數(shù) |
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|---|---|
| R2051K01-E2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2 wire interface Real-Time Clock ICs with Battery Backup switch-over Function |
| R2051K02-E2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2 wire interface Real-Time Clock ICs with Battery Backup switch-over Function |
| R2051S01-E2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2 wire interface Real-Time Clock ICs with Battery Backup switch-over Function |
| R2051S02-E2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2 wire interface Real-Time Clock ICs with Battery Backup switch-over Function |
| R2051S03-E2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2 wire interface Real-Time Clock ICs with Battery Backup switch-over Function |
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