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参数资料
| 型号： | MIC3000BMLTR |
| 厂商： | MICREL INC |
| 元件分类： | 数字传输电路 |
| 英文描述： | ATM/SONET/SDH SUPPORT CIRCUIT, QCC24 |
| 封装： | 4 X 4 MM, MLF-24 |
| 文件页数： | 42/68页 |
| 文件大小： | 444K |
| 代理商： | MIC3000BMLTR |
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October 2004
47
M9999-101204
MIC3000
Micrel
Alarm Flags
Alarm Register 0 (ALARM0)
D[7]
D[6]
D[5]
D[4]
D[3]
D[2]
D[1]
D[0]
A7
A6
A5
A4
A3
A2
A1
A0
read-only
Default Value
0000 0000b = 00h (no events pending)
Serial Address
A2h = 1010001b
Byte Address
112 = 70h
The power-up default value is 00h. Following the first A/D conversion, however, any of the bits may be set depending
upon the results.
Bit(s)
Function
Operation
D[7]
A7
High temperature alarm, TEMPh > TMAXh.
1 = condition exists, 0 = normal/OK.
D[6]
A6
Low temperature alarm, TEMPh < TMINh.
1 = condition exists, 0 = normal/OK.
D[5]
A5
High voltage alarm, VINh > VMAXh.
1 = condition exists, 0 = normal/OK.
D[4]
A4
Low voltage alarm, VINh < VMINh.
1 = condition exists, 0 = normal/OK.
D[3]
A3
High laser diode bias alarm, IBIASh > IMAXh.
1 = condition exists, 0 = normal/OK.
D[2]
A2
Low laser diode bias alarm, IBIASh < IMINh.
1 = condition exists, 0 = normal/OK.
D[1]
A1
High transmit optical power alarm,
1 = condition exists, 0 = normal/OK.
TXOPh > TXMAXh.
D[0]
A0
Low transmit optical power alarm,
1 = condition exists, 0 = normal/OK.
TXOPh < TXMINh.
Alarm Register 1 (ALARM1)
D[7]
D[6]
D[5]
D[4]
D[3]
D[2]
D[1]
D[0]
A15
A14
read-only
reserved
Default Value
0000 0000b = 00h (no events pending)
Serial Address
A2h = 1010001b
Byte Address
113 = 71h
The power-up default value is 00h. Following the first A/D conversion, however, any of the bits may be set depending
on the results.
Bit(s)
Function
Operation
D[7]
A15
High received power (overload) alarm,
1 = condition exists, 0 = normal/OK.
RXOPh > RXMAXh.
D[6]
A14
Low received power (LOS) alarm,
1 = condition exists, 0 = normal/OK.
RXOPh < RXMINh.
D[5:0]
Reserved
Reserved - always write as zero.
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