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| MIC280_06 Datasheet, PDF (20/23 Pages) Micrel Semiconductor – Precision IttyBitty Thermal Supervisor | |||
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MIC280
Micrel
D[7]
read/write
D[6]
read/write
Local Over-Temperature Limit Register (CRIT0)
8-bits, read/write
Local Over-Temperature Limit Register
D[5]
read/write
D[4]
read/write
D[3]
read/write
D[2]
read/write
Over-temperature limit for local zone.
D[1]
read/write
D[0]
read/write
Bit
Function
Operation
D[7:0]
Over-temperature limit for the local zone.
Read/write
Power-up default value:
0100 0110b = 46h (70°C)
Read/Write command byte: 0010 0000b = 20h
Each LSB represents one degree centigrade. The values are in a twoâs complement binary format such that 0°C is reported
as 0000 0000b. SeeTemperature Data Format (above) for more details.
Any writes to a temperature limit register will result in the corresponding fault queue being purged and reset.
D[7]
read only
0
D[6]
read only
0
Manufacturer ID Register (MFG_ID)
8-bits, read only
Manufacturer ID Register
D[5]
read only
D[4]
read only
D[3]
read only
D[2]
read only
1
0
1
0
D[1]
read only
1
D[0]
read only
0
BIT(S)
D[7:0]
FUNCTION
Identiï¬es Micrel as the manufacturer of the device. Always returns 2Ah.
Power-up default value:
Read command byte:
0010 1010b = 2Ah
1111 1110b = FEh
Operation*
Read only. Always returns
2Ah
D[7]
read-only
D[6]
read-only
Die Revision Register (DIE_REV)
8-bits, read only
Die Revision Register
D[5]
read-only
D[4]
read-only
D[3]
reserved
D[2]
reserved
MIC280 DIE REVISION NUMBER
D[1]
reserved
D[0]
reserved
Bit(s)
D[7:0]
Function
Identiï¬es the device revision number
Power-up default value:
Read command byte:
[Device revision number]h
1111 1111b = FFh
Operation*
Read only.
MIC280
20
May 2006
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