MIC3002_10 Datasheet, PDF (48/65 Pages) Micrel Semiconductor – FOM Management IC with Internal Calibration

Micrel, Inc.
MIC3002
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]
A1
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 A/D conversion, 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 > TMAXh
Low temperature alarm, TEMPh< 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 A/D conversion, however, any 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 - always write as zero.
July 2007
48
M9999-073107-B
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