f75375 Feature Integration Technology Inc., f75375 Datasheet - Page 36

• Manufacturer Part Number: f75375
• Description: Fintek Hardware Monitor Ic Datasheet
• Manufacturer: Feature Integration Technology Inc.

7.40
7.41
7.42
7.43
Power on default: 01h
Power on default: 53h
Power on default: 53h
Power on default: 0000_0000b
FAN1 Expect Count Low Boundary(MSB) -- Index 7Bh
FAN1 Expect Count Low Boundary(LSB) -- Index 7Ch
FAN1 PWMOUT CLOCK FREQUENCY SELECT -- Index 7Dh
FAN2 Full speed Register 0  Index 80h
7-0
7-0
7-3
2
1-0
7-0
Bit
Bit
Bit
Bit
FAN2_FULL(MSB)
Fintek
FAN1_EXPEC
T_L[15:8]
FAN1_EXPEC
T_L[7:0]
Reserved
FAN1_INV
FAN1_PWMCL
K_SEL
Name
Name
Name
Name
Attribute
Attribute
Attribute
Attribute
RO
RO
R/W
R/W
R/W
The MSB of FAN1_EXPECT - FAN1_EXPTOL
The LSB of FAN1_EXPECT - FAN1_EXPTOL
Set to 1, invert the signal of PWMOUT1.
Select PWMOUT1 output frequency.
00 : 5.85K Hz
01 : 26.56K Hz
10 : 187.5K Hz
11 : 5.85K Hz
While PIN4 is set to PWMOUT mode, the PWMOUT2 will output full
duty cycle (FFh) to enable system FAN. After 10 seconds when
detecting FANIN1 signal, assuming the fan has been fully turned
on, the fan speed count detected will be recorded in the register. If
there is no signal on FANIN2 after power on, the PWMOUT2 will
30
Feature Integration Technology Inc.
Description
Description
Description
Description
F75375S/F75375SG
July 2007
V0.26P