Rainbow Electronics LM83 - Manual (Page 13)

1.0 Functional Description
(Continued)
2.0 LM83 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 RD2RT Read D2 Remote
Temperature
02h 0000 0000 0 RSR1 Read Status Register 1
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 RD2RHS Read D2 Remote HIGH
Setpoint
08h Reserved
09h 0000 0000 WC Write Configuration
0Ah Reserved
0Bh 0111 1111 127 WD2LHS Write Local HIGH Setpoint
0Ch Reserved
0Dh 0111 1111 127 WD2RHS Write D2 Remote HIGH
Setpoint
0Eh-2Fh Reserved for Future Use
30h 0000 0000 0 RD1RT Read D1 Remote
Temperature
31h 0000 0000 0 RD3RT Read D3 Remote
Temperature
32h-34h Reserved for Future Use
35h 0000 0000 0 RSR2 Read Status Register 2
36h-37h Reserved for Future Use
38h 0111 1111 127 RD1RHS Read D1 Remote HIGH
Setpoint
39h Reserved for Future Use
3Ah 0111 1111 127 RD3RHS Read D3 Remote HIGH
Setpoint
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 WD1RHS Write D1 Remote HIGH
Setpoint
51h Reserved for Future Use
52h 0111 1111 127 WD3RHS Write D3 Remote HIGH
Setpoint
53h-59h Reserved for Future Use
5Ah 0111 1111 127 WTCS Write T_CRIT Setpoint
LM83
www.national.com 13