mic3002 Micrel Semiconductor, mic3002 Datasheet - Page 56

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

Micrel, Inc.
July 2007
Default Value
Serial Address
Byte Address
A valid OEM password is required for access to this register. This register is non-volatile and will be maintained through power
and reset cycles.
D[7]
D[6]
D[5:4]
D[3]
D[2]
D[1]
D[0]
Default Value
Serial Address
Byte Address
This four-byte field is the password required for access to the OEM area of the MIC3002’s memory and registers. The byte at
address 12 (0C h ) is the most significant byte. This field is compared to the four-byte OEMPW field at serial address A2 h , byte
120 to 123 if OMCFG6-2 = 0, or byte 123 to 126 if OEMCFG6-2 = 1. If the two fields match, access is allowed to the OEM
areas of the MIC3002 non-volatile memory at serial addresses A4 h and A6 h . The OEM password may be set by writing the
new value into OEMPWSET. The new password will not take effect until after a power-on reset occurs or a warm reset is
performed using the RST bit in OEMCFG0. This allows the new password to be verified before it takes effect. These registers
are non-volatile and will be maintained through power and reset cycles. A valid OEM password is required for access to this
register.
Byte
3
2
1
0
read/write
read/write
OEMIM
D[7]
D[7]
Bit
Weight
OEM Password, Most Significant Byte
OEM Password, 2nd Most Significant Byte
OEM Password, 2nd Least Significant Byte
OEM Password, Least Significant Byte
OEMIM
POHE
D[5:4]
SATMSK
TXMSK
IAMSK
DFMSK
read/write
read/write
POHE
D[6]
D[6]
Function
OEM interrupt mask bit
OEM Power-on Hour Meter enable bit
Reserved
APC saturation fault mask bit
High TX optical power fault mask bit
Bias current high alarm mask bit
Diode fault mask bit
read/write
reserved
D[5]
D[5]
OEM Password Setting (OEMPWSET)
0000 0000 b = 00 h
A6 h
11 = 0B h
0000 0000 b = 00 h
A6 h
12 - 15 = 0C h - 0F h ; 0C h = MSB
read/write
reserved
Fault Mask (FLTMSK)
D[4]
D[4]
Operation
1 = masked; 0 = enabled; Read/write; non-volatile.
1 = enabled; 0 = disabled; Read/write; non-volatile.
Always write as zero; reads undefined.
1 = masked; 0 = enabled; Read/write; non-volatile.
1 = masked; 0 = enabled; Read/write; non-volatile.
1 = masked; 0 = enabled; Read/write; non-volatile.
1 = masked; 0 = enabled; Read/write; non-volatile.
read/write
read/write
SATMSK
56
D[3]
D[3]
read/write
read/write
TXMSK
D[2]
D[2]
[e-mail]
read/write
read/write
IAMSK
D[1]
D[1]
or [phone]
read/write
read/write
M9999-073107-B
DFMSK
D[0]
D[0]
MIC3002