LM96163C NSC [National Semiconductor], LM96163C Datasheet - Page 31

• Manufacturer Part Number: LM96163C
• Manufacturer: NSC [National Semiconductor]

19
21
30
BF
Address
HEX
HEX
HEX
HEX
Hex
BF
19
21
30
REMOTE DIODE T_CRIT SETPOINT REGISTER
T_CRIT HYSTERESIS REGISTER
REMOTE DIODE TruTherm ENABLE REGISTER
REMOTE DIODE TEMPERATURE FILTER AND COMPARATOR MODE
Read/
Write
R/W
R/W
R/W
R/W
R/W
R
R
R
Bits
7:0
6:0
7:2
7:6
5:3
2:1
7
1
0
0
(10°C)
Value
(110°
0x6E
0x0A
POR
0x00
000
C)
00
00
1
0
0
RDTF1:RDTF0
RCS7:RCS0
RTH6:RTH0
[Reserved]
[Reserved]
[Reserved]
[Reserved]
ALT/CMP
Name
RDTE
RTH7
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:
LCS7 is the SIGN bit
LCS6 has a bit weight of 64°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
This bit is unused. OK to write 1 or 0.
Remote Diode T_CRIT Hysteresis
T_CRIT stays activated until the remote diode temperature goes below
[(T_CRIT Limit)—(T_CRIT Hysteresis)].
RTH6 has a bit weight of 64°C
RTH5 has a bit weight of 32°C
RTH4 has a bit weight of 16°C
RTH3 has a bit weight of 8°C
RTH2 has a bit weight of 4°C
RTH1 has a bit weight of 2°C
RTH0 has a bit weight of 1°C
These bits are unused and always read as 0.
Remote Diode TruTherm Enable
0: TruTherm beta compensation technology is turned off. Use this mode when
using an MMBT3904 as a thermal diode.
1: TruTherm beta compensation technology is turned on. Use this mode when
sensing a thermal diode in an Intel processor on 45 nm or 65 nm process.
This bit is unused and always read as 0.
These bits are unused and always write 0.
These bits are unused and always read as 0.
Remote Diode Temperature Filter Control
00: Filter Disabled
01: Filter Level 2 (minimal filtering, same as 10; Like LM63, LM63 Level 1 not
supported)
10: Filter Level 2 (minimal filtering, same as 01; like LM63, LM63 Level 1 not
supported)
11: Filter Enhanced Level 2 (maximum filtering)
Comparator Mode
0: the ALERT pin functions normally.
1: the ALERT pin behaves as a comparator, asserting itself when an ALERT
condition exists, de-asserting itself when the ALERT condition goes away.
31
Description
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