Datasheet

LM86
www.ti.com SNIS114E –DECEMBER 2001–REVISED MARCH 2013
LM86 REGISTERS
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
Command Select
P0-P7: Command Select
Command Select Address Power On Default State Register Register Function
Name
Read Address Write Address <D7:D0> binary <D7:D0> decimal
<P7:P0> hex <P7:P0> hex
00h NA 0000 0000 0 LT Local Temperature
01h NA 0000 0000 0 RTHB Remote Temperature High Byte
02h NA 0000 0000 0 SR Status Register
03h 09h 0000 0000 0 C Configuration
04h 0Ah 0000 1000 8 (16 conv./sec) CR Conversion Rate
05h 0Bh 0100 0110 70 LHS Local HIGH Setpoint
06h 0Ch 0000 0000 0 LLS Local LOW Setpoint
07h 0Dh 0100 0110 70 RHSHB Remote HIGH Setpoint High Byte
08h 0Eh 0000 0000 0 RLSHB Remote LOW Setpoint High Byte
NA 0Fh One Shot Writing to this register will initiate
a one shot conversion
10h NA 0000 0000 0 RTLB Remote Temperature Low Byte
11h 11h 0000 0000 0 RTOHB Remote Temperature Offset High
Byte
12h 12h 0000 0000 0 RTOLB Remote Temperature Offset Low
Byte
13h 13h 0000 0000 0 RHSLB Remote HIGH Setpoint Low Byte
14h 14h 0000 0000 0 RLSLB Remote LOW Setpoint Low Byte
19h 19h 0101 0101 85 RCS Remote T_CRIT Setpoint
20h 20h 0101 0101 85 LCS Local T_CRIT Setpoint
21h 21h 0000 1010 10 TH T_CRIT Hysteresis
B0h-BEh B0h-BEh Manufacturers Test Registers
BFh BFh 0000 0000 0 RDTF Remote Diode Temperature Filter
FEh NA 0000 0001 1 RMID Read Manufacturer's ID
FFh NA 0001 0001 17 RDR Read Stepping or Die Revision
Code
LOCAL and REMOTE TEMPERATURE REGISTERS (LT, RTHB, RTLB)
Table 2. LOCAL and REMOTE TEMPERATURE REGISTERS (LT, RTHB) (Read Only Address 00h, 01h):
BIT D7 D6 D5 D4 D3 D2 D1 D0
Value SIGN 64 32 16 8 4 2 1
For LT and RTHB D7–D0: Temperature Data. LSB = 1°C. Two's complement format.
Table 3. LOCAL and REMOTE TEMPERATURE REGISTERS (RTLB) (Read Only Address 10h):
BIT D7 D6 D5 D4 D3 D2 D1 D0
Value 0.5 0.25 0.125 0 0 0 0 0
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