MIC280-7BM6 TR【PDF 18/23 页】IC SUPERVISOR THERMAL SOT23-6

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Sheet目录45

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MIC280

Micrel

MIC280

May 2006

Remote Temperature Result Low-Byte Register (TEMP1l)

8-bits, read only

Remote Temperature Result Low-Byte Register

D[7]

D[6]

D[5]

D[4]

D[3]

D[2]

D[1]

D[0]

read-only

reserved

Temperature data from ADC, least signicant bits

Reserved - always reads zero

Bit

Function

Operation

D[7:4]

Measured temperature data for the remote zone, least signicant bits.

Read only

D[3:0]

Reserved

Always reads as zeroes

Power-up default value:

0000 0000

= 00

(0癈)**

Read command byte:

0001 0000

= 10

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

reported as 0001 0000

. See Temperature Data Format (above) for more details.

TEMP1l can be accessed using a Read_Byte operation. However, the complete remote temperature result in both TEMP1h

and TEMP1l may be obtained by performing a Read_Word operation on TEMP1h. The MIC280 will respond to a Read_Word

with a command byte of 01h (TEMP1h) by returning the value in TEMP1h followed by the value in TEMP1l. This guaran-

tees that the data in both registers is from the same temperature-to-digital conversion cycle. The Read_Word operation is

diagramed in Figure 3. TEMP1h is the only MIC280 register that supports Read_Word.

**TEMP1l will contain measured temperature data after the completion of one conversion.

Remote Temperature High Limit Low-Byte Register (THIGH1l)

8-bits, read/write

Remote Temperature High Limit Low-Byte Register

D[7]

D[6]

D[5]

D[4]

D[3]

D[2]

D[1]

D[0]

read/write

reserved

High temperature limit for remote zone, least signicant bits.

Reserved - always reads zero

Bit

Function

Operation

D[7:4]

High temperature limit for the remote zone, least signicant bits.

Read/write

D[3:0]

Reserved.

Always reads as zeros

Power-up default value:

0000 0000

= 00

(0癈)

Read/Write command byte:

0001 0011

= 13

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

reported as 0001 0000

. 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.

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