MIC3003 Datasheet, PDF (71/75 Pages) Micrel Semiconductor – FOM Management IC with Internal Calibration

Micrel, Inc.
MIC3003
OEM Configuration 6 (OEMCFG6)
D[7]
read/write
D[6]
read/write
D[5]
read/write
D[4]
read/write
D[3]
read/write
D[2]
read/write
D[1]
read/write
D[0]
read/write
Default value
0000 0000b = 00h
Serial address
A6h
Byte address
27 = 1Bh
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[6:5]
D[4]
D[3]
D[2]
D[1]
D[0]
Function
A0h space access control
RXPWR Linearization Intervals
TXDISABLE debounce enable
/ disable
RXLOS Polarity
RXLOS/TRSOUT Select
Temperature resolution
TXFAULT clear mode
Operation
0: A0h space is used according to SFF-8472
1: A0h space does not respond to any access request. SMBus transactions to
A0h receive a NACK response.
00: Temperature-based coefficient selection
01: Programmable delimiters
10: Hard coded delimiters
11: Reserved
Options 01 and 10 partition the receive power result range into eight regions,
each of which has its own slope and offset coefficients. The delimiters identify
the region boundaries within the 12-bit receive power range of results, and
may be either hard-coded (10) or programmable (01).
Use of hard-coded delimiters frees up exta A6 memory space for scratchpad
use.
0: TXDISABLE is not debounced
1: TXDISABLE is debounced. Glitches less than 5 ms are rejected.
Set this bit to 1 if a mechanical switch is used for TXDISABLE. Set to 0 for
normal operation to assure compliance to the SFP MSA.
0: The RXLOS output is low for normal operation and high with a loss of signal
condition.
1: The RXLOS output is high for normal operation (signal detected) and low
with a loss of signal (no signal detected) condition.
0: RXLOS is selected for output
1: TRRSOUT is selected for output
0: Temperature is measured to a resolution of 1 ºC (eight-bit resolution)
1: Temperature is measured to a resolution of 0.5 ºC (nine-bit resolution)
0: TXFAULT remains set until TXDISABLE is toggled
1: TXFAULT is in continuous mode and follows the state of the faults
In continuous mode, the fault conditions asserting TXFAULT are not registered
and turn on and off According to the MIC3003’s operation.
November 2009
71
M9999-111209-C
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