Datasheet

LM96163
www.ti.com SNAS433D –JUNE 2008–REVISED MAY 2013
Address Read/ POR
Bits Name Description
Hex Write Value
31
HEX
AND 32
HEX
UNSIGNED REMOTE DIODE TEMPERATURE REGISTERS
Most Significant Byte of the Unsigned Format Remote Diode Temperature
Reading
The most significant 8-bits of the unsigned format value, representing the
31 R 7:0 N/A RTU12:RTU5
temperature of the remote diode connected to the LM96163. Bit 7 has a weight of
128°C, bit 6 has a weight of 64°C, and bit 0 has a weight of 1°C. This byte to be
read before the LSB.
Least Significant Byte of the Unsigned Format Remote Diode Temperature
Reading
This is the LSB of the unsigned value, representing the temperature of the remote
7:3 N/A RUT4:RUT0 diode connected to the LM96163. Bit 4 has a weight 0.5°C, bit 3 has a weight of
32 R
0.25°C, and bit 2 has a weight of 0.125°C. if the digital filter is turned off
RUT1:RUT0 have a value of 00. When the digital filter is turned on: bit 1 has a
weight of 0.0625 and bit 0 has a weight of 0.03125°C
2:0 00 [Reserved] These bits are unused and always read as 0.
11
HEX
AND 12
HEX
REMOTE TEMPERATURE OFFSET REGISTERS
11 R/W 7:0 0x00 RTO10:RTO3 Remote Temperature Offset (MSB and LSB)
These registers contain the value added to or subtracted from the remote diode’s
reading to compensate for the different non-ideality factors of different
processors, diodes, etc. The 2’s complement value, in these registers is added to
R/W 7:5 000 RTO2:RTO1
the output of the LM96163’s ADC to form the temperature reading contained in
12
registers 01 and 10. These registers have the same format as the MSB and LSB
Remote Diode Temperature Reading registers with the digital filter off.
R 4:0 000 [Reserved] These bits are not used and always read as 0.
07 (0D)
HEX
AND 13
HEX
REMOTE HIGH SETPOINT REGISTERS
0x55 Remote HIGH Setpoint (MSB and LSB)
07 (0D) R/W 7:0 RHS10:RHS3
(85°C) High setpoint temperature for remote diode. Same format as Unsigned Remote
Temperature Reading (registers 31 and 32) or Signed Remote Temperature
Reading (registers 01 and 10) with the digital filter off. Is it programmable by the
R/W 7:5 000 RHS2:RHS0
13
USF bit found in the Enhanced configuration Register.
R 4:0 0x00 [Reserved] These bits are not used and always read as 0.
08 (0E)
HEX
AND 14
HEX
REMOTE LOW SETPOINT REGISTERS
00
Remote LOW Setpoint (MSB and LSB)
08 (0E) R/W 7:0 RTS10:RTS3
(0°C)
Low setpoint temperature for remote diode. Same format as Signed Remote
Temperature Reading (registers 01 and 10) with the digital filter off.
R/W 7:5 000 RTS2:RTS0
14
R 4:0 0x00 [Reserved] These bits are not used and always read as 0.
19
HEX
REMOTE DIODE T_CRIT SETPOINT REGISTER
Remote Diode T_CRIT Setpoint Limit
This 8-bit integer stores the T_CRIT limit and is nominally 110°C. The value of
this register can be locked by setting T_CRIT Limit Override (bit 1) in the
Configuration register to a 0, then programming a new T_CRIT value into this
register. The format of this register is programmable. When the USF bit in the
Enhanced Configuration register is cleared:
0x6E
LCS7 is the SIGN bit
19 R/W 7:0 (110° RCS7:RCS0
LCS6 has a bit weight of 64°C
C)
LCS5 has a bit weight of 32°C
LCS4 has a bit weight of 16°C
LCS3 has a bit weight of 8°C
LCS2 has a bit weight of 4°C
LCS1 has a bit weight of 2°C
LCS0 has a bit weight of 1°C
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