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F71883 Datasheet(PDF) 91 Page - Feature Integration Technology Inc.

Part # F71883
Description  Super Hardware Monitor LPC I/O
PDF  133 Pages
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Manufacturer  FINTEK [Feature Integration Technology Inc.]
Direct Link  http://www.fintek.com.tw/eng
Logo FINTEK - Feature Integration Technology Inc.

F71883 Datasheet(HTML) 91 Page - Feature Integration Technology Inc.

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May, 2008
V0.27P
-85-
F71883
3-0
FAN1_STOP_DUTY
R/W
5h
When fan start, the FAN_CTRL 1 will increase duty-cycle from 0 to this
(value x 8 directly. And if fan speed is down, the FAN_CTRL 1 will
decrease duty-cycle to 0 when the PWM duty cycle is less than this (value
x 4).
8.6.2.37 FAN3 and FAN4 START UP DUTY-CYCLE/VOLTAGE
 Index 9Dh
Bit
Name
R/W Default
Description
7-4
FAN4_STOP_DUTY
R/W
5h
When fan start, the FAN_CTRL 4 will increase duty-cycle from 0 to this
(value x 8) directly. And if fan speed is down, the FAN_CTRL 4 will
decrease duty-cycle to 0 when the PWM duty cycle is less than this (value
x 4).
3-0
FAN3_STOP_DUTY
R/W
5h
When fan start, the FAN_CTRL 3 will increase duty-cycle from 0 to this
(value x 8 directly. And if fan speed is down, the FAN_CTRL 3 will
decrease duty-cycle to 0 when the PWM duty cycle is less than this (value
x 4).
8.6.2.38 Fan Fault Time Register -- Index 9Fh
Bit
Name
R/W Default
Description
7-5
Reserved
--
--
Reservd
4
FULL_DUTY_SEL
R/W
--
0: the full duty is 100%.
1: the full duty is 60% (default).
This register is power on trap by DTR1#.
3-0
F_FAULT_TIME
R/W
Ah
This register determines the time of fan fault. The condition to cause fan
fault event is:
When PWM_Duty reaches FFh, if the fan speed count can’t reach the fan
expect count in time.
The unit of this register is 1 second. The default value is 11 seconds.
(Set to 0 , means 1 seconds. ; Set to 1, means 2 seconds.
Set to 2, means 3 seconds. …. )
Another condition to cause fan fault event is fan stop and the PWM duty is
greater than the minimum duty programmed by the register index 9C-9Dh.
Fan1 Index A0h- AFh
Address
Attribute
Default
Value
Description



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