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| 型号： | RV5C339 |
| 厂商： | Ricoh Co., Ltd. |
| 英文描述： | 3-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION |
| 中文描述： | 3线串行接口实时时钟IC，带有电压检测功能 |
| 文件页数： | 42/51页 |
| 文件大小： | 421K |
| 代理商： | RV5C339 |
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RV5C339A
44
8.3 Reading Time and Calendar Data
8.3-1 Ordinary Process of Reading Time and Calendar Data
Wait for 31
s
Read from Time Counter
and Calendar Counter
*
1
8.3-2 Basic Process of Reading Time and Calendar Data Synchronized with Periodic Interrupt
CTFG=1?
Other Interrupt
Processes
Generate Interrupt in CPU
Write “
×,1,×,1,×,0,1,1”
to Control Register 2
Set Periodic Interrupt
Cycle Selection Bits
YES
NO
Read from Time Counter
and Calendar Counter
*
1
*
2
*
3
*1) This step of waiting is detailed in “1.5 Considerations in Reading and
Writing Time Data”.
*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 set the CTFG bit to 0 in the control register 2 to
cancel an interrupt to the CPU.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| RV5C339A | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:3-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION |
| RV5C339A_03 | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:3-WIRE SERIAL INTERFACE REAL-TIME CLOCK IC WITH VOLTAGE MONITORING FUNCTION |
| RV5C339A-E2 | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:3-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION |
| RV5C348A | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:4-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION |
| RV5C348B | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:4-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION |
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