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參數(shù)資料
| 型號： | R2043T-E2 |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | XO, clock |
| 英文描述： | 4-wire Serial Interface |
| 中文描述： | REAL TIME CLOCK, PDSO10 |
| 封裝： | 4 X 2.9 MM, 1 MM HEIGHT, TSSOP-10 |
| 文件頁數(shù)： | 48/48頁 |
| 文件大?。?/td> | 458K |
| 代理商： | R2043T-E2 |
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R2043K/T
O
Interrupt Process
(1) Periodic Interrupt
12345
Rev.2.06 - 48 -
*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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