mic3003 Micrel Semiconductor, mic3003 Datasheet - Page 69

• Manufacturer Part Number: mic3003
• Description: Fom Management Ic With Internal Calibration
• Manufacturer: Micrel Semiconductor

Micrel, Inc.
May 2009
Default value
Serial address
Byte address
This register is non-volatile and will be maintained through power and reset cycles. A valid OEM password is required for
access to these registers.
Bit(s)
D[7]
D[6]
D[5]
D[4]
D[3:0]
TXF_WRN
read/write
D[7]
Function
TXF_WRN
TXF_ALM
LAT_WRN
LAT_ALM
ISTART[3:0]
TXF_ALM
read/write
D[6]
TXFAULT
TXFAULT
I
Allows warnings to assert
Allows alarms to assert
Warning latch
Alarm latch
START
LAT_WRN
read/write
current level selection.
D[5]
OEM Configuration 4 (OEMCFG4)
0000 0000 b = 00 h
A6 h
25 = 19 h
Operation
LAT_ALM
read/write
D[4]
0: Warnings do not assert TXFAULT
1: Warnings assert TXFAULT
The RXPWR low warning flag does not assert TXFAULT
0: Alarms do not assert TXFAULT
1: Alarms assert TXFAULT
The RXPWR low alarm flag does not assert TXFAULT
0: Warnings flags are latched. They are cleared by reading
the register or toggling TXDISABLE.
1: Warnings flags are not latched., i.e. they are set and reset
with the warning condition. The flags are also cleared by
reading the register or toggling TXDISABLE.
0: Alarms flags are latched. They are cleared by reading the
register or toggling TXDISABLE.
1: Alarms flags are not latched., i.e. they are set and reset
with alarm condition. The flags are also cleared by reading
the register or toggling TXDISABLE.
0000 = No I
0001 - 1111 = 0.375 mA x I
I
occurs. The charging current of the compensation capacitor
starts from I
I
START
START
ISTART[3]
read/write
69
D[3]
is used to speed up the laser start-up after a fault
current level selection:
START
START
current
instead of ramping up from 0.
ISTART[2]
read/write
D[2]
[e-mail]
START[
[3:0]
ISTART[1]
read/write
D[1]
or [phone]
ISTART[0]
read/write
M9999-052709-A
D[0]
MIC3003