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LM93 Datasheet(PDF) 73 Page - Texas Instruments

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Part # LM93
Description  Hardware Monitor with Integrated Fan Control for Server Management
PDF  95 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LM93 Datasheet(HTML) 73 Page - Texas Instruments

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LM93
www.ti.com
SNAS210E – DECEMBER 2003 – REVISED MARCH 2013
SU_DUR
Spin-Up Time
0h
Spin-up disabled
1h
100 ms
2h
250 ms
3h
400 ms
4h
700 ms
5h
1000 ms
6h
2000 ms
7h
4000 ms
3.17.8.20 Register CFh
Special Function PWM2 Control 4
Register
Read/
Register
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Address
Write
Name
Value
Special
RES
RES
RES
RES
FREQ2
Function
CFh
R/W
RES
00h
PWM2
Control 4
Bit
Name
R/W
Description
2:0
FREQ2
R/W
PWM2 frequency control. Controls the frequency of the PWM2 output in the same
fashion as FREQ1 in the PWM1 Control 4 register.
7:3
RES
R
Reserved
3.17.8.21 Register D0h–D3h
Zone 1 to 4 Base Temperatures
Register
Read/
Register
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Address
Write
Name
Value
Zone 1
Base
D0h
R/W
7
6
5
4
3
2
1
0
N/D
Temperat
ure
Zone 2
Base
D1h
R/W
7
6
5
4
3
2
1
0
N/D
Temperat
ure
Zone 3
Base
D2h
R/W
7
6
5
4
3
2
1
0
N/D
Temperat
ure
Zone 4
Base
D3h
R/W
7
6
5
4
3
2
1
0
N/D
Temperat
ure
The value in this register is used as the base in the temperature calculation for the auto fan control look-
up table. These registers use the standard temperature format (8-bit signed data). The look-up table
contains the temperature offsets. The offsets are added to the base temperature to determine the true
temperature to be used for each table entry for auto fan control.
3.17.8.22 Register D4h–DFh
Lookup Table Steps—Zone 1/2 and Zone 3/4 Offset Temperature
Register
Read/
Register
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Address
Write
Name
Value
Step 2
D4h
R/W
Temp
Z3/4_STEP2
Z1/2_STEP2
N/D
Offset
Step 3
D5h
R/W
Temp
Z3/4_STEP3
Z1/2_STEP3
N/D
Offset
Copyright © 2003–2013, Texas Instruments Incorporated
Functional Description
73
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Product Folder Links: LM93



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