mic3003 Micrel Semiconductor, mic3003 Datasheet - Page 72

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

Micrel, Inc.
May 2009
Default values for all bytes when the MIC3003
is shipped
Serial address
Byte addresses
These registers are used for backing up the POH result during power cycles. At power-up, the POH meter selects the larger of
the two values as the initial count. Incremental results are stored in alternate register pairs. The power-on hour meter may be
reset or preset by writing to these registers.
These registers are not typically intended to be used by the OEM or end user. The current value of the power-on hours meter
may be read from the POHh and POHl registers.
If it is necessary to preset the power-on hours meter to a specific value, please consult the factory for the exact format to be
written to the POHDATA registers.
These registers are non-volatile and will be maintained through power and reset cycles. A valid OEM password is required for
access to these registers.
Default value
Serial address
Byte addresses
The scratchpad registers are general-purpose non-volatile memory locations. They can be freely read from and written to any
time the MIC3003 is in OEM mode.
read/write
D[7]
Byte
3
2
1
0
read/write
D[6]
Weight
POHA, high-byte
POHA, low-byte
POHB, high-byte
POHB, low-byte
read/write
D[5]
OEM Scratchpad Registers (SCRATCHn)
Power-On Hour Meter Data (POHDATA)
0000 0000 b = 00 h
A6 h
32 – 34 and 36 - 38 = 20 h - 22 h and 24 h - 26 h
0000 0000 b = 00 h
A6 h
136 - 207 (88 - CF
208 - 221 (D0 - DD
coded delimiters option for receive power linearization is used.
222 - 250 (DE - FA
read/write
D[4]
h
read/write
h
h
72
)
)
): This area is part of the OEM scratch pad only if the hard-
D[3]
read/write
D[2]
[e-mail]
read/write
D[1]
or [phone]
M9999-052709-A
read/write
D[0]
MIC3003