Bit

Type

Description

2-0

R

Resolution. This field defines the value of 1 LSb of the Temperature Readout field in the Readout Register.

The SensorPath specification defines many different weights for the temperature LSb. The LM95010

supports a resolution of 0.25 ˚C and thus a value of 010 for this field. For a full definition of this field please

refer to the SensorPath specification.

5-3

R

Number of Bits. This field defines the total number of significant bits of the Temperature Readout field in the

Readout register. The total number of osignificant bits includes the number of bits representing the interger

part of the temperature data and the fractional part of it, as defined by the Resolution field. The LM95010

supports 10 bits and thus a value of 001 for this field. For a full definition of this field please refer to the

SensorPath specification.

6R

Sign (Signed Data). Defines the type of data in the Temperature Readout field of the Readout register.

0: Unsigned, positive fixed point value.

1: Signed, 2’s complement fixed point value. (value for the LM95010)

7R

RoutSize (Readout Register size). Defines the total size of the Readout register.

0: 16 bits. (LM95010 default)

1: 24 bits.

8

R/W

IntSens (Internal Sensor Support). Indicates if the device supports internal temperature measurements, as

the LM95010 does.

0: No internal temperature measurement

1: Internal temperature sensor implemented. (value for the LM95010)

15-9

RO

Reserved. Will always read "0".

2.9.3 Temperature Data Readout (Addr 11o)

Reg

Add

Register

Name

R/

W

P

O

R

Val

Bit

15

MSb

Bit

14

Bit

13

Bit

12

Bit

11

Bit

10

Bit

9

Bit

8

Bit

7

Bit

6

Bit

5

Bit

4

Bit

3

Bit

2

Bit

1

Bit

0

LSb

001 001

Temperature

Data

Readout

R

MSb

Sign

64˚C 32˚C 16˚C 8˚C

4˚C

2˚C

1˚C

0.5

˚C

LSb

0.25

˚C

Reserved

000000

The LM95010’s temperature data format is two’s complement and has 10-bits of resolution with the LSb having a weight of

0.25 ˚C. The LM95010 can resolve temperature between +127.75 ˚C and -128 ˚C, inclusive. It can measure temperatures

Temperature Data Format

Decimal

Binary

Hex

+127.75 ˚C

01 1111 1111

1FFh

+100.00 ˚C

01 1001 0000

190h

+1.00 ˚C

00 0000 0100

004h

+0.25 ˚C

00 0000 0001

001h

0 ˚C

00 0000 0000

000h

-0.25 ˚C

11 1111 1111

3FFh

-1.00 ˚C

11 1111 1100

3FCh

-20.00 ˚C

11 1011 0000

3 B0h

-39.75 ˚C

11 0110 0001

361h

-40.00 ˚C

11 0110 0000

360h

-128.00 ˚C

10 0000 0000

200h

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