mic3002 Micrel Semiconductor, mic3002 Datasheet - Page 61

• Manufacturer Part Number: mic3002
• Description: Mic3002 Fom Management Ic With Internal Calibration
• Manufacturer: Micrel Semiconductor

Micrel, Inc.
July 2007
I START [3:0]
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]
D[2]
D[1]
D[0]
reserved
D[7]
I START current level selection:
0000 = No I START current
0001 - 1111 = 0.375mA x
I START [3:0]
I START is used to speed up
the laser start-up after a fault
occurs. The charging current
of the compensation cap starts
from I START instead of
ramping up from 0.
Function
SHDN output enable / disable
Temperature-compensation of
the temperature used to access
the L.U.T.s.
Temperature-compensation of
the temperature result in the
temperature register.
Polarity of TXFAULT
SMBUS multipart support
OEM password location
SMBUS timeout enable /
disable
DACs reset
reserved
D[6]
reserved
D[5]
OEM Configuration 5 (OEMCFG5)
0000 0000 b = 00 h
A6 h
26 = 1A h
Read/write; non-volatile.
Operation
0: SHDN is enabled. TXFAULT will trigger SHDN output
1: SHDN is disabled. TXFAULT has no effect on SHDN output
This applies when pin 7 is set as SHDN output.
0: The temperature used to index into the LUTs is not compensated (sensed
temperature used)
1: The temperature used to index the LUTs is temperature-compensated
(module case temperature used)
0: The temperature result in the temperature register is not compensated
(sensed temperature sed)
1: The temperature result in the temperature register is compensated
(module case temperature used)
0: TXFAULT is active high
1: TXFAULT is active low
0: Multipart mode off
1: Multipart mode on
0: A6h 120-123 (78h-7Bh)
1: A6h 123-126 (7Bh-7Eh)
0: SMBUS timeout enabled
1: SMBUS timeout disabled
0: Clear DACs when the laser is off
1: Do not clear the DACs when laser is off
reserved
D[4]
read/write
61
D[3]
read/write
D[2]
[e-mail]
read/write
D[1]
or [phone]
read/write
M9999-073107-B
D[0]
MIC3002