MIC3003GFL Datasheet, PDF (50/74 Pages) Micrel Semiconductor – FOM Management IC with Internal Calibration

Micrel, Inc.
MIC3003GFL
Alarm Flags
Alarm Status Register 0 (ALARM0)
D[7]
A7
read-only
D[6]
A6
read-only
D[5]
A5
read-only
D[4]
A4
read-only
D[3]
A3
read-only
D[2]
A2
read-only
D[1]
A1
read-only
D[0]
A0
read-only
Default value
0000 0000b = 00h (no events pending)
Serial address
A2h
Byte address
112 = 70h
The power-up default value is 00h. Following the first complete A/D conversion cycle, however, any of the bits may be set
depending upon the results.
Bit(s)
D[7]
A7
D[6]
A6
D[5]
A5
D[4]
A4
D[3]
A3
D[2]
A2
D[1]
A1
D[0]
A0
Function
High temperature alarm, TEMP > TMAX
Low temperature alarm, TEMP < TMIN
High voltage alarm, VIN > VMAX
Low voltage alarm, VIN < VMIN
High laser diode bias alarm, IBIAS > IMAX
Low laser diode bias alarm, IBIAS < IMIN
High transmit optical power alarm,
TXOP > TXMAX
Low transmit optical power alarm,
TXOP < TXMIN
Operation
1 = condition exists, 0 = normal/OK
1 = condition exists, 0 = normal/OK
1 = condition exists, 0 = normal/OK
1 = condition exists, 0 = normal/OK
1 = condition exists, 0 = normal/OK
1 = condition exists, 0 = normal/OK
1 = condition exists, 0 = normal/OK
1 = condition exists, 0 = normal/OK
Alarm Status Register 1 (ALARM1)
D[7]
A15
read-only
D[6]
A14
read-only
D[5]
reserved
D[4]
reserved
D[3]
reserved
D[2]
reserved
D[1]
reserved
D[0]
reserved
Default value
0000 0000b = 00h (no events pending)
Serial address
A2h
Byte address
113 = 71h
The power-up default value is 00h. Following the first complete A/D conversion cycle, however, either of the bits may be set
depending upon the results.
Bit(s)
D[7]
A15
D[6]
A14
D[5:0]
Function
High received power (overload) alarm, RXOP > RXMAX
Low received power (LOS) alarm, RXOP < RXMIN
Reserved
Operation
1 = condition exists, 0 = normal/OK
1 = condition exists, 0 = normal/OK
Reserved, returns zero on reads
July 2010
50
M9999-072910-A
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