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参数资料
| 型号： | RTC-7301SFB |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | REAL TIME CLOCK, PDSO24 |
| 封装： | SSOP-24 |
| 文件页数： | 13/28页 |
| 文件大小： | 274K |
| 代理商： | RTC-7301SFB |
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RTC - 7301 SF / DG
Page - 17
MQ332-05
7. How to use
7-1. Procedures for initially turning ON the power
*1 (initial settings)
*1 : It is necessary to turn on the power to the RTC first.
Once the initial settings for the RTC are completed, the contents are
retained in a backup.
Therefore when the system power is turned ON again later, perform the “Procedures for recovery from the
backup” in the next section.
Approximately 1 s is required from the start of the oscillator until the
clock and calendar register is set.
Mask the interrupt on the system side so that the CPU does not
respond to careless interrupts from RTC when making the initial
settings.
Register table Bank switching is performed by writing to the Address F
(common to all Banks) Bank Sel bit.
Clear the TEST bit, stop the clock, and turn the temperature sensor
OFF(your option).
Set the alarm interrupt.
When not using the alarm interrupt, set the AIE bit to "0."
Set the CS1 link functions.
When not using the CS1 link functions, set the CTEMP and CDT_ON
bits to "0."
Set the FOUT output. When set for 32.768 kHz output when the
FCON pin is Low, setting of the register is unnecessary.
When not using the FOUT output, set the FE bit to "0."
Set the digital offset functions.
When not using the digital offset functions, set the DT_ON bit to "0."
Set the Timer interrupt.
When not using the Timer interrupt, set the TE bit to "0."
Set the current time.
Start the clock.
Initial Settings
TEST
← 0
TEMP
← ( 0 )
STOP
← 1
Bank 1
Bank 2
Bank 0
122
s Wait
STOP
← 0
Alarm Interrupt Settings
CS1 Control Settings
FOUT Output Settings
Digital Offset Settings
Timer Interrupt Settings
Set the data to the clock
and calendar registers
To Next Process
7-2. Procedures for recovery from the backup
Start
Fos =0 ?
Yes
No
Initial Settings
To Next Process
Check the Fos Flag.
If Fos is "1," the backup power voltage is reduced so
the RTC data and contents of the register might have
been lost, so it is necessary to redo the initial
settings.
When turning ON the power, the Fos flag is "1" so it is
possible to use the same power ON routine.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| RTC-840 | 制造商:AAEON 制造商全称:AAEON 功能描述:Intel?? Corea?￠ Duo U2500 1.2 GHz Processor |
| RTC-8563JE | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Real-Time Clock |
| RTC-8563SA | 制造商:EPSONTOYOCOM 制造商全称:Epson ToYoCom 功能描述:RTC-8563SA |
| RTC-8563SJE | 制造商:EPSONTOYOCOM 制造商全称:Epson ToYoCom 功能描述:RTC-8563SA |
| RTC-8564JE | 制造商:Epson Toyocom Corporation 功能描述:32.768kHz 275nA@3ViTyp.j 3.0V (typ.) 7.0~5.4~1.5mm +85 -40 5}23ppm@+25/3.0V 7mm 5.4mm 1.5mm 制造商:Epson Toyocom Corporation 功能描述:RTC I2C BUS INTERFACE SMD VSOJ-20 制造商:Epson Toyocom Corporation 功能描述:RTC I2C BUS INTERFACE, SMD, VSOJ-20 制造商:Epson Toyocom Corporation 功能描述:IC, RTC, FULL CALENDAR, VSOJ-20; Clock Format:12Hr / 24Hr; Clock IC Type:RTC; Supply Voltage Min:1.8V; Supply Voltage Max:5.5V; Digital IC Case Style:VSOJ; No. of Pins:20; IC Interface Type:I2C; Operating Temperature Min:-40C ;RoHS Compliant: Yes 制造商:Epson Toyocom 功能描述:RTC module,I2C Bus,Alarm,timer func |
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