2.0 LM82 REGISTERS

2.1 COMMAND REGISTER

Selects which registers will be read from or written to. Data for this register should be transmitted during the Command Byte of

the SMBus write communication.

P7

P6

P5

P4

P3

P2

P1

P0

0

Command Select

P0-P7: Command Select

Command Se-

lect Address

Power On Default State

Register Name

Register Function

mal

00h

0000 0000

0

RLT

Read Local Temperature

01h

0000 0000

0

RRT

Read Remote Temperature

02h

0000 0000

0

RSR

Read Status Register

03h

0000 0000

0

RC

Read Configuration

04h

0000 0000

0

Reserved

05h

0111 1111

127

RLHS

Read Local HIGH Setpoint

06h

Reserved

07h

0111 1111

127

RRHS

Read Remote HIGH Setpoint

08h

Reserved

09h

0000 0000

WC

Write Configuration

0Ah

Reserved

0Bh

0111 1111

127

WRHS

Write Local HIGH Setpoint

0Ch

Reserved

0Dh

0111 1111

127

WLHS

Write Local HIGH Setpoint

0Eh-2Fh

Reserved for Future Use

30h-31h

0000 0000

0

Reserved

32h-34h

Reserved for Future Use

35h

0000 0000

0

Reserved

36h-37h

Reserved for Future Use

38h

0111 1111

127

Reserved

39h

Reserved for Future Use

3Ah

0111 1111

127

Reserved

3Bh-41h

Reserved for Future Use

42h

0111 1111

127

RTCS

Read T_CRIT Setpoint

43h-4Fh

Reserved for Future Use

50h

0111 1111

127

Reserved

51h

Reserved for Future Use

52h

0111 1111

127

Reserved

53h-59h

Reserved for Future Use

5Ah

0111 1111

127

WTCS

Write T_CRIT Setpoint

5Ch-6Fh and

F0h-FDh

Reserved for Future Use

FEh

0000 0001

1

RMID

Read Manufacturers ID

FFh

1

RSR

Read Stepping or Die

Revision Code

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