TMP451-Q1

SLOS877B – OCTOBER 2014 – REVISED JUNE 2019

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(1)

X = undefined. Writing any value to this register initiates a one-shot start; see the One-Shot Conversion section.

7.6 Register Map

Table 4. Register Map

POINTER READ

(HEX)

POINTER

WRITE (HEX)

POR (HEX)

BIT DESCRIPTION

REGISTER DESCRIPTION

7

6

5

4

3

2

1

0

00

N/A

00

LT11

LT10

LT9

LT8

LT7

LT6

LT5

LT4

Local temperature (high byte)

01

N/A

00

RT11

RT10

RT9

RT8

RT7

RT6

RT5

RT4

Remote temperature (high byte)

02

N/A

N/A

BUSY

LHIGH

LLOW

RHIGH

RLOW

OPEN

RTHRM

LTHRM

Status register

03

09

00

MASK1

SD

ALERT/

THERM2

0

0

RANGE

0

0

Configuration register

04

0A

08

0

0

0

0

CR3

CR2

CR1

CR0

Conversion rate register

05

0B

55

LTHL11

LTHL10

LTHL9

LTHL8

LTHL7

LTHL6

LTHL5

LTHL4

Local temperature high limit

06

0C

00

LTLL11

LTLL10

LTLL9

LTLL8

LTLL7

LTLL6

LTLL5

LTLL4

Local temperature low limit

07

0D

55

RTHL11

RTHL10

RTHL9

RTHL8

RTHL7

RTHL6

RTHL5

RTHL4

Remote temperature high limit (high byte)

08

0E

00

RTLL11

RTLL10

RTLL9

RTLL8

RTLL7

RTLL6

RTLL5

RTLL4

Remote temperature low limit (high byte)

N/A

0F

N/A

X

X

X

X

X

X

X

X

One-shot start

(1)

10

N/A

00

RT3

RT2

RT1

RT0

0

0

0

0

Remote temperature (low byte)

11

11

00

RTOS11

RTOS10

RTOS9

RTOS8

RTOS7

RTOS6

RTOS5

RTOS4

Remote temperature offset (high byte)

12

12

00

RTOS3

RTOS2

RTOS1

RTOS0

0

0

0

0

Remote temperature offset (low byte)

13

13

00

RTHL3

RTHL2

RTHL1

RTHL0

0

0

0

0

Remote temperature high limit (low byte)

14

14

00

RTLL3

RTLL2

RTLL1

RTLL0

0

0

0

0

Remote temperature low limit (low byte)

15

N/A

00

LT3

LT2

LT1

LT0

0

0

0

0

Local temperature (low byte)

19

19

6E

RTH11

RTH10

RTH9

RTH8

RTH7

RTH6

RTH5

RTH4

Remote temperature THERM limit

20

20

6E

LTH11

LTH10

LTH9

LTH8

LTH7

LTH6

LTH5

LTH4

Local temperature THERM limit

21

21

0A

HYS11

HYS10

HYS9

HYS8

HYS7

HYS6

HYS5

HYS4

THERM hysteresis

22

22

01

SMBTO

0

0

0

CONAL2

CONAL1

CONAL0

1

Consecutive ALERT

23

23

00

NC7

NC6

NC5

NC4

NC3

NC2

NC1

NC0

η-factor correction

24

24

00

0

0

0

0

0

0

DF1

DF0

Digital filter control

FE

N/A

55

0

1

0

1

0

1

0

1

Manufacturer ID