LM96194CISQ/NOPB National Semiconductor, LM96194CISQ/NOPB Datasheet - Page 37

• Manufacturer Part Number: LM96194CISQ/NOPB
• Description: IC TRUTHERM HDWR MONITOR 48-LLP
• Manufacturer: National Semiconductor
• Series: PowerWise®, TruTherm®r

Specifications of LM96194CISQ/NOPB

• Function: Fan Control, Temp Monitor
• Topology: ADC (Sigma Delta), Comparator, Fan Control, Multiplexer, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: -40°C ~ 85°C, External Sensor
• Output Type: SMBus™
• Output Alarm: No
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-LLP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM96194CISQTR

Loc
k
SETUP REGISTERS
x
x
x
x
x
x
x
AD_IN4 High Limit
Reserved
AD_IN5 Low Limit
AD_IN5 High Limit
Reserved
AD_IN6 Low Limit
AD_IN6 High Limit
AD_IN7 Low Limit
AD_IN7 High Limit
AD_IN8 Low Limit
AD_IN8 High Limit
AD_IN9 Low Limit
AD_IN9 High Limit
PROCHOT User Limit
Reserved
Vccp Limit Offsets
Reserved
FAN Tach 1 Limit LSB
FAN Tach 1 Limit MSB
FAN Tach 2 Limit LSB
FAN Tach 2 Limit MSB
FAN Tach 3 Limit LSB
FAN Tach 3 Limit MSB
FAN Tach 4 Limit LSB
FAN Tach 4 Limit MSB
Special Function Control 1
Special Function Control 2
GPI / VID Level Control
PWM Ramp Control
Fan Boost Hysteresis (Zones 1/2)
Fan Boost Hysteresis (Zones 3/4)
Zones 1/2 Spike Smoothing Control
LUT 1/2 MinPWM and Hysteresis
LUT 3/4 MinPWM and Hysteresis
GPO
PROCHOT Control
Register Name
9Dh
9Eh-9Fh N/D
A0h
A1h
A2h-A7h N/D
A8h
A9h
AAh
ABh
ACh
ADh
AEh
AFh
B0h
B1h
B2h
B3h
B4h
B5h
B6h
B7h
B8h
B9h
BAh
BBh
BCh
BDh
BEh
BFh
C0h
C1h
C2h
C3h
C4h
C5h
C6h
Address Default
FFh
00h
FFh
00h
FFh
00h
FFh
00h
FFh
00h
FFh
FFh
N/D
17h
N/D
FCh
FFh
FCh
FFh
FCh
FFh
FCh
FFh
00h
00h
00h
00h
44h
44h
00h
00h
00h
00h
00h
37
High limit for analog input 4 measurement (Processor Vccp)
Low limit for analog input 5 measurement
High limit for analog input 5 measurement
Low limit for analog input 6 measurement
High limit for analog input 6 measurement
Low limit for analog input 7 measurement
High limit for analog input 7 measurement
Low limit for analog input 8 measurement
High limit for analog input 8 measurement
Low limit for analog input 9 measurement
High limit for analog input 9 measurement
User settable limit for PROCHOT
VID offset values for window comparator for CPU Vccp (AD_IN4)
FAN Tach 1 Limit LSB
FAN Tach 1 Limit MSB
FAN Tach 2 Limit LSB
FAN Tach 2 Limit MSB
FAN Tach 3 Limit LSB
FAN Tach 3 Limit MSB
FAN Tach 4 Limit LSB
FAN Tach 4 Limit MSB
Controls the hysteresis for voltage limit comparisons. Also selects
filtered or unfiltered temperature usage for temperature limit
comparisons and fan control.
Enables smart tach detection. Also selects 0.5°C or 1.0°C resolution
for fan control.
Control the input threshold levels for the VIDx, and GPIO_x inputs.
Controls the ramp rate of the PWM duty cycle when VRD_HOT is
asserted, as well as the ramp rate when PROCHOT exceeds the
user threshold.
Fan Boost Hysteresis for zones 1 and 2
Fan Boost Hysteresis for zones 3 and 4
Configures Spike Smoothing for zones 1 and 2
Controls MinPWM and hysteresis setting for LUT 1 and 2 auto-fan
control
Controls MinPWM and hysteresis setting for LUT 3 and 4 auto-fan
control
Controls the output state of the GPIO pins
Controls assertion PROCHOT
Description
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