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参数资料
| 型号： | RV5C348B |
| 厂商： | RICOH COMPANY LTD |
| 元件分类： | XO, clock |
| 英文描述： | 4-WIRE SERIAL INTERFACE |
| 中文描述： | 0 TIMER(S), REAL TIME CLOCK, PDSO10 |
| 封装： | 4 X 2.90 MM, 1.20 MM HEIGHT, 0.50 MM PITCH, SSOP-10 |
| 文件页数： | 39/45页 |
| 文件大小： | 1276K |
| 代理商： | RV5C348B |
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Rx5C348A/B
(3) Applied Process of Reading Time and Calendar Data with Periodic Interrupt Function
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.
For Time Indication in "Day-of-Month, Day-of-week, Hour, Minute, and Second"
Format:
*2)
Other interrupts
Processes
Sec.=00?
Yes
No
Generate interrupt to CPU
*1)
*3)
CTFG=1?
Control Register 2
←
(X1X1X011)
Yes
Read Min.,Hr.,Day,
and Day-of-week
*4)
No
Control Register 1
←
(XXXX0100)
Control Register 2
←
(X1X1X011)
Use previous Min.,Hr.,
Day, and Day-of-week data
*1) This step is intended to select the level
mode as a waveform mode for the
periodic interrupt function.
*2) This step must be completed within 1.0
sec.
*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.
12345
Rev.2.01
- 44 -
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| RV5C386A | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:I2C-bus Real-Time Clock ICs with Voltage Monitoring Function |
| RV5C386A_03 | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC WITH VOLTAGE MONITORING FUNCTION |
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