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參數(shù)資料
| 型號： | RS5C372B |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | XO, clock |
| 英文描述： | I2C-bus Serial Interface Real Time Clock (8pin SSOP) |
| 中文描述： | REAL TIME CLOCK, PDSO8 |
| 封裝： | SSOP-8 |
| 文件頁數(shù)： | 35/39頁 |
| 文件大?。?/td> | 474K |
| 代理商： | RS5C372B |
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RS5C372B
- 35 -
4. Typical Software-based Operation
4.1. Initialization upon Power-on
Start
*1)
XSTP=1
Yes
No
*2)
ACK not returned or
Read Data is FFh
Control register 2
←
(00XXXXXX)
Set clock, calendar,
interrupt cycle, and others
Power-on
*3)
*4)
*5)
4.2. Write Operation to Clock and Calendar Counters
Write Clock and
Calendar registers
*2)
Stop Condition
Start Condition
*1)
*1) Start access after waiting one to two seconds that are required for starting up of oscillation and
internal initialization after power on from 0V.
*2) If access is tried during IC internal initialization period described in *1), acknowledge signal may
not be output, it is output only at first, or values read may FFh. If any of these occurs, repeat
accessing. This will be required also for ordinary routines when accessing may require 0.5
seconds or more.
*3) When XSTP=0 in oscillation halt sensing, it indicates power has not been booted from 0V but from
back up supply.
*4) The XSTP shall be set to 0 by setting any data to the control register 2.
*5) Perform ordinary initial setting including clock calendar or interrupt cycle.
*1) When writing to clock and calendar registers, do not insert
stop condition until all times from second to year have been
written to prevent error in writing time.
*2) Take care so that process from start condition to stop
condition will be completed within 0.5 seconds. (The
RS5C372B forces access to the CPU to terminate within
0.5 to 1.0 seconds after start condition has occurred in
case the CPU is failed during access.)
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| RS5C372B-E1 | I2C-bus Serial Interface Real Time Clock (8pin SSOP) |
| RS5C372B-E2 | I2C-bus Serial Interface Real Time Clock (8pin SSOP) |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| RS5C4FC | 制造商:Dialight 功能描述: |
| RS5C4F-C | 制造商:DIALIGHT 制造商全稱:Dialight Corporation 功能描述:StreetSense? RS Series LED Roadway Sign Light |
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