f75377 Feature Integration Technology Inc., f75377 Datasheet - Page 45

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f75377

Manufacturer Part Number
f75377
Description
Monitor With Automatic Speed Control
Manufacturer
Feature Integration Technology Inc.
Datasheet
7-0
7-3
7-4
3-0
Bit
Bit
FAN_BANK_SEL=0x02
7.73
7.74
1
0
T2_JUMP_HIGH_EN
FAN T2 Control Register 1 – Index D6h
T2_JUMP_LOW_EN
FAN T2 Control Register 2 – Index D7h
FAN2_WEIGHT
FAN1_WEIGHT
SEC3SPEED
Name
Name
-
R/W
R/W Default
R/W
R/W
R/W Default
R/W
R/W
R
(30%)
4ch
Fh
0
1
1
0
The meaning of this register is depending on the FAN_MODE(CR96)
2’b00: The value that set in this byte is the relative expect fan speed % of
the full speed in this temperature section.
2’b01: The value that set in this byte is mean the expect PWM duty-cycle
in this temperature section.
Reserved
Set 1 that FAN speed will jump to SEC1SPEED when temperature over
BOUND1TEMP CRD9.
Set 0 that FAN1 speed will raise up to SEC1SPEED by slop value (CR9A)
when temperature over BOUND1TEMP CRD9..
Set 1 that FAN speed will jump to SEC2SPEED when temperature under
BOUND1TEMP Hystersis.
Set 0 that FAN speed will decrease to SEC2SPEED by slop value (CR9B)
when temperature under FAN1 Boundary Hystersis.
Temperature 2 to FAN2 weight setting register:
0: T2 independent with FAN2.
1: Proportion of T2 to FAN2 is 1/15
2: Proportion of T2 to FAN2 is 2/15.
…..
F: Proportion of T2 to FAN2 is 15/15
Temperature 2 to FAN1 weight setting register:
0: T2 independent with FAN1.
1: Proportion of T2 to FAN1 is 1/15
2: Proportion of T2 to FAN1 is 2/15.
…..
F: Proportion of T2 to FAN1 is 15/15
45
Description
Description
F75377
March.
V0.12P
, 2008

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