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參數(shù)資料
| 型號(hào)： | RS5C348B-E2 |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | XO, clock |
| 英文描述： | Real-Time Clock |
| 中文描述： | 0 TIMER(S), REAL TIME CLOCK, PDSO10 |
| 封裝： | 6.40 X 3.50 MM, 1.25 MM HEIGHT, 0.5 MM PITCH, SSOP-10 |
| 文件頁數(shù)： | 49/53頁 |
| 文件大?。?/td> | 452K |
| 代理商： | RS5C348B-E2 |
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R
×
5C348A/B
46
8.3-3 Applied Process of Reading Time and Calendar Data Synchronized with Periodic Interrupt
Time data need not be read from all the time counters when used for such ordinary purposes as time count
indication. This applied process can be used to read time and calendar data with substantial reductions in the load
involved in such reading.
CTFG=1
Generate Interrupt to CPU
Write
“
×
,
×
,
×
,
×
,0,1,0,0
”
to control Register 1
Write
“
×
,1,
×
,1,
×,
0,1,1
”
to Control Register 2
NO
YES
NO
YES
Write
“
×
,1,
×
,1,
×
,0,1,1
”
to Control Register 2
Use Previous Minute,
Hour, Day-of-week,
and Day-of-month Data
Other Interrupt
Processes
Read Minute, Hour, Day-of-week,
and Day-of-month Counters
*
1
*
2
*
4
*
3
Second Digit = 00
For Time Indication in “Day-of-month, Day-of-week, Hour,
Minute, and Second” Format:
*
1) This step is intended to select the level mode as a waveform mode for the periodic interrupt function.
*
2) If this step is completed within 1 second, the step of waiting described in “8.3.-1 Ordinary Process of Reading Time and Calendar Data” above need not
be conducted. This step is detailed in “1.5 Considerations in Reading and Writing Time Data”.
*
3) This step is intended to read time data from all the time counters only in the first session of reading time data after writing time data.
*
4) 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 |
|---|---|
| RS5C372A | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:I2C bus SERIAL INTERFACE REAL-TIME CLOCK ICs |
| RS5C372B | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:I2C-bus Serial Interface Real Time Clock (8pin SSOP) |
| RS5C372B-E1 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:I2C-bus Serial Interface Real Time Clock (8pin SSOP) |
| RS5C372B-E2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:I2C-bus Serial Interface Real Time Clock (8pin SSOP) |
| RS5C373A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Real-Time Clock |
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