Rainbow Electronics LM82 - Manual (Page 12)

1.0 Functional Description
(Continued)
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
< P7:P0 > hex < D7:D0 > binary < D7:D0 > deci-
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
LM82
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