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參數(shù)資料
| 型號： | BQ3285ECS |
| 英文描述： | Real-Time Clock |
| 中文描述： | 實時時鐘 |
| 文件頁數(shù)： | 10/26頁 |
| 文件大?。?/td> | 831K |
| 代理商： | BQ3285ECS |
Register C
Register C is theread-only event status register.
Bits 0,1,2,3 - Unused Bits
Thesebits arealways set to0.
UF - Update Event Flag
This bit is set to a 1 at the end of the update cycle.
Reading register C clears this bit.
AF - Alarm Event Flag
This bit is set to a 1 when an alarm event occurs. Read-
ing register C clears this bit.
PF - Periodic Event Flag
This bit is set to a 1 every t
PI
time, where t
PI
is the time
period selected by the settings of RS0–RS3 in register A.
Reading register C clears this bit.
INTF - Interrupt Request Flag
This flag is set toa 1 when any of thefollowing is true:
AIE = 1 and AF = 1
PIE = 1 and PF = 1
UIE = 1 and UF = 1
Reading register C clears this bit.
Register D
Register D is the read-only data integrity status regis-
ter.
Bits 0–6 - Unused Bits
Thesebits arealways set to0.
VRT - Valid RAM and Time
1 = Valid backup energy source
0 = Backup energy sourceis depleted
When the backup energy source is depleted (VRT = 0),
data integrity of the RTC and storage registers is not
guaranteed.
10
7
-
6
-
5
-
4
-
3
0
2
-
1
0
0
0
7
-
6
-
5
-
4
3
-
2
-
1
-
0
-
UF
7
-
6
-
5
4
-
3
-
2
-
1
-
0
-
AF
7
-
6
5
-
4
-
3
-
2
-
1
-
0
-
PF
7
6
-
5
-
4
-
3
-
2
-
1
-
0
-
INTF
Register D Bits
4
0
7
6
0
5
0
3
0
2
0
1
0
0
0
VRT
7
-
6
0
5
0
4
0
3
0
2
0
1
0
0
0
7
6
-
5
-
4
-
3
-
2
-
1
-
0
-
VRT
July 1996
bq3285EC/LC
Register C Bits
4
UF
7
6
5
3
0
2
-
1
0
0
0
INTF
PF
AF
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| BQ3285ES-N | Real-Time Clock |
| BQ3285ESS-N | Real-Time Clock |
| BQ3285LCS | Real-Time Clock |
| BQ3285LP | Real-Time Clock |
| BQ3285LQ | Real-Time Clock |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BQ3285ECSS- | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Real-Time Clock (RTC) |
| BQ3285ED | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Real-Time Clock (RTC) |
| BQ3285EDSS | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Real-Time Clock (RTC) |
| BQ3285EDSSTR | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Real-Time Clock (RTC) |
| BQ3285EP | 功能描述:實時時鐘 w/242x8 NVSRAM Alarm Wake-up RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
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