ADT7482

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13

Table 11. List of Registers

Read

Address

(Hex)

Write

Address

(Hex)

Mnemonic

Power−On Default

Comment

Lock

N/A

N/A

Address Pointer

Undefined

No

00

N/A

Local Temperature Value

0000 0000 (0x00)

No

01

N/A

Remote 1 Temperature Value High Byte

0000 0000 (0x00)

Bit 3 Conf. Reg. = 0

No

01

N/A

Remote 2 Temperature Value High Byte

0000 0000 (0x00)

Bit 3 Conf. Reg. = 1

No

02

N/A

Status Register 1

Undefined

No

03

09

Configuration Register 1

0000 0000 (0x00)

Yes

04

0A

Conversion Rate

0000 0111 (0x07)

Yes

05

0B

Local Temperature High Limit

0101 0101 (0x55) (85°C)

Yes

06

0C

Local Temperature Low Limit

0000 0000 (0x00) (0°C)

Yes

07

0D

Remote 1 Temperature High Limit High Byte

0101 0101 (0x55) (85°C)

Bit 3 Conf. Reg. = 0

Yes

07

0D

Remote 2 Temperature High Limit High Byte

0101 0101 (0x55) (85°C)

Bit 3 Conf. Reg. = 1

Yes

08

0E

Remote 1 Temperature Low Limit High Byte

0000 0000 (0x00) (0°C)

Bit 3 Conf. Reg. = 0

Yes

08

0E

Remote 2 Temperature Low Limit High Byte

0000 0000 (0x00) (0°C)

Bit 3 Conf. Reg. = 1

Yes

N/A

0F

(Note 1)

One Shot

N/A

10

N/A

Remote 1 Temperature Value Low Byte

0000 0000

Bit 3 Conf. Reg. = 0

No

10

N/A

Remote 2 Temperature Value Low Byte

0000 0000

Bit 3 Conf. Reg. = 1

No

11

11

Remote 1 Temperature Offset High Byte

0000 0000

Bit 3 Conf. Reg. = 0

Yes

11

11

Remote 2 Temperature Offset High Byte

0000 0000

Bit 3 Conf. Reg. = 1

Yes

12

12

Remote 1 Temperature Offset Low Byte

0000 0000

Bit 3 Conf. Reg. = 0

Yes

12

12

Remote 2 Temperature Offset Low Byte

0000 0000

Bit 3 Conf. Reg. = 1

Yes

13

13

Remote 1 Temperature High Limit Low Byte

0000 0000

Bit 3 Conf. Reg. = 0

Yes

13

13

Remote 2 Temperature High Limit Low Byte

0000 0000

Bit 3 Conf. Reg. = 1

Yes

14

14

Remote 1 Temperature Low Limit Low Byte

0000 0000

Bit 3 Conf. Reg. = 0

Yes

14

14

Remote 2 Temperature Low Limit Low Byte

0000 0000

Bit 3 Conf. Reg. = 1

Yes

19

19

Remote 1 THERM Limit

0101 0101 (0x55) (85°C)

Bit 3 Conf. Reg. = 0

Yes

19

19

Remote 2 THERM Limit

0101 0101 (0x55) (85°C)

Bit 3 Conf. Reg. = 1

Yes

20

20

Local THERM Limit

0101 0101 (0x55) (85°C)

Yes

21

21

THERM Hysteresis

0000 1010 (0x0A) (10°C)

Yes

22

22

Consecutive ALERT

0000 0001 (0x01)

Yes

23

N/A

Status Register 2

0000 0000 (0x00)

No

24

24

Configuration 2 Register

0000 0000 (0x00)

Yes

30

N/A

Remote 2 Temperature Value High Byte

0000 0000 (0x00)

No

31

31

Remote 2 Temperature High Limit High Byte

0101 0101 (0x55) (85°C)

Yes

32

32

Remote 2 Temperature Low Limit High Byte

0000 0000 (0x00) (0°C)

Yes

33

N/A

Remote 2 Temperature Value Low Byte

0000 0000 (0x00)

No

34

34

Remote 2 Temperature Offset High Byte

0000 0000 (0x00)

Yes

35

35

Remote 2 Temperature Offset Low Byte

0000 0000 (0x00)

Yes

36

36

Remote 2 Temperature High Limit Low Byte

0000 0000 (0x00) (0°C)

Yes

37

37

Remote 2 Temperature Low Limit Low Byte

0000 0000 (0x00) (0°C)

Yes

39

39

Remote 2 THERM Limit

0101 0101 (0x55) (85°C)

Yes

FE

N/A

Manufacturer ID

0100 0001 (0x41)

N/A

FF

N/A

Die Revision Code

0110 0101 (0x65)

N/A

1. Writing to address 0F causes the ADT7482 to perform a single measurement. It is not a data register as such and it does not matter what

data is written to it.