7.6.1 Temperature Result Register (P[1:0] = 00) [reset = 0000h]

The temperature result register stores the results of the conversion in 12-bit or 13-bit format, depending on the

state of the ETM bit in the configuration register. Negative numbers are represented in two's complement format.

Following power-up or reset the temperature result register reads 0°C, until the first conversion is complete.

When the ETM bit is configured as '0', the temperature result register of the device is configured as 12-bit value

with the least significant bit always reading '0'. One LSB for the temperature result equals 0.0625°C.

Table 7-6. Temperature Result Register (ETM = 0)

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

T[11:0]

EM

Reserved

R-000h

R-0

R-0h

Table 7-7. Temperature Result Register (ETM = 0) Field Description

Bit

Field

Type

Reset

Description

15:4

T[11:0]

R

000h

12-bit temperature result after last conversion

3

EM

R

0

Extended mode bit

2:0

Reserved

R

0h

Reserved

When the ETM bit is configured as '1', the temperature result register of the device is configured as 13-bit value.

One LSB for the temperature result equals 0.0625°C.

Table 7-8. Temperature Result Register (ETM = 1)

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

T[12:0]

Reserved

R-0000h

R-0h

Table 7-9. Temperature Result Register (ETM = 1) Field Description

Bit

Field

Type

Reset

Description

15:13

T[12:0]

R

0000h

13-bit temperature result after last conversion

2:0

Reserved

R

0h

Reserved

7.6.2 Configuration Register (P[1:0] = 01) [reset = 0200h]

The configuration register is used to store bits that control the operational modes of the temperature sensors and

read the status of alert flags. Read/write operations are performed LSB first.

Return to Register Map.

Table 7-10. Configuration Register

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

INT_E

N

CR[1:0]

FH

FL

LC

M[1:0]

ETM

Reserved

R/W-0

R/W-0

R-0

R-0

R/W-0

R/W-10

R/W-0

R-00h

Table 7-11. Configuration Register Field Description

Bit

Field

Type

Reset

Description

15

INT_EN

R/W

0

Interrupt enable bit

0 = Interrupt is disabled

1 = Interrupt is enabled

14:13

CR[1:0]

R/W

0

Conversion rate select

00 = 0.25 Hz conversion rate (default)

01 = 1 Hz conversion rate

10 = 4 Hz conversion rate

11 = 8 Hz conversion rate

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TMP144

SBOS891C – OCTOBER 2018 – REVISED SEPTEMBER 2023

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