w83627ehf Winbond Electronics Corp America, w83627ehf Datasheet - Page 44

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w83627ehf

Manufacturer Part Number
w83627ehf
Description
W83627ehf/ef W83627ehg/eg Winbond Lpc I/o
Manufacturer
Winbond Electronics Corp America
Datasheet

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6.5.4
Smart Fan III control system can be disabled and the fan speed control algorithm can be programmed
by BIOS or application software. The programming method must be set fan configuration at bank 0
index 04h,bit5-4,index 12h bit2~1 index 62h bit5~4.Before enabling Smart Fan III mode ,you have to
set relative registers as table 6.4-2. In addition to the required registers, the device has a the following
registers that further configure and enable the fan speed control functionality .Then Table 6.4-1
displayed current temperature and fan output value at Smart Fan III mode , Besides, the table 6.4-2
used to setting at Smart Fan III mode
Table 6.4-2 Relative Register-at Smart Fan III control mode
Current CPU
Temperature
Current SYS
Temperature
Current AUX
Temperature
Current
CPUFANOUT0
Output Value
Current
SYSFANOUT
Output Value
Smart-Fan III Mode
Table 6.4-1 Display Register- at Smart Fan III Mode
DESCRIPTION
CPUFANOUT0
CPUFANOUT1
CPUFANOUT0
CPUFANOUT1
SMART-FAN III
Smart Fan III Mode
MODE
Bank1
50H ,51H
Bank 0
27H
Bank2
50H,51H
Bank0
03H
Bank0
01H
REGISTER
ADDRESS
TEMPERATU
Output Step
TARGET
CR[6Ah]
CR[06h]
CR[63h]
CR[68h]
RE
CPUTIN Temperature
Sensor
SYSTIN Temperature
Sensor
AUXTIN Temperature
Sensor
CPUFANOUT0 Output
Value Select
SYSFANOUT Output
Value Select
CR[07h] bit 4-
CR[62h] bit 0-
TOLERANCE
REGISTER NAME
W83627EHF/EF, W83627EHG/EG
Step Down
CR[0Eh]
CR[0Eh]
Time
7
3
-38-
(MIN. FAN
OUTPUT)
Step Up
CR[09h]
CR[64h]
CR[0Fh]
CR[0Fh]
VALUE
STOP
Time
Read only
Read only
Read only
FFh
FFh
ATTRIBUTE
Keep Min. Fan
Output value
CR[12h] bit 4
CR[12h] bit 6
MAX. FAN
OUTPUT
CR[67h]
CR[69h]
8 MSB, 1°C bit 7,
0.5 °C
8 MSB, 1°C
8 MSB, 1°C bit 7,
0.5 °C
Bit7-0
CPUFANOUT Value
Bit7-0 SYSFANOUT
Value
BIT DATA
CR[0Dh]
CR[66h]
STOP
TIME

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