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參數(shù)資料
| 型號： | BQ3287MT |
| 英文描述： | Avalanche Glass Passivated Bridge Rectifiers |
| 文件頁數(shù)： | 10/26頁 |
| 文件大小： | 831K |
| 代理商： | BQ3287MT |
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
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相關代理商/技術參數(shù) |
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