MIC280 datasheet(19/23 Pages) MICREL

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November 2004

MIC280

Micrel

Remote Temperature Low Limit Low-Byte Register (TLOW1l)

8-bits, read/write

Remote Temperature Low Limit Low-Byte Register

D[7]

D[6]

D[5]

D[4]

D[3]

D[2]

D[1]

D[0]

read/write

reserved

Low temperature limit for remote zone, least signiﬁcant bits.

Reserved - always reads zero.

Bit

Function

Operation

D[7:4]

Low temperature limit for the remote zone, least signiﬁcant bits.

Read/write

D[3:0]

Reserved

Always reads as zeros.

Power-up default value:

0000 0000b = 00h (0°C)

Read/Write command byte:

0001 0100b = 14h

Each LSB represents one-sixteenth degree centigrade. The values are in a binary format such that 1/16th°C (0.0625°C) is

reported as 0001 0000b. See Temperature Data Format (above) for more details.

Any writes to a temperature limit register will result in the corresponding fault queue being purged and reset.

Remote Over-Temperature Limit Register (CRIT1)

8-bit, read/write

Remote Over-Temperature Limit Register

D[7]

D[6]

D[5]

D[4]

D[3]

D[2]

D[1]

D[0]

read/write

Over-temperature limit for remote zone.

Bit

Function

Operation

D[7:0]

Over-temperature limit for the remote zone.

Read/write

Power-up default value:

0110 0100b = 64h (100°C)

Read/Write command byte:

0001 1001b = 19h

Each LSB represents one degree centigrade. The values are in a two’s 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.

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