f75387 Feature Integration Technology Inc., f75387 Datasheet - Page 32

• Manufacturer Part Number: f75387
• Description: ?1o C Accuracy H/w Monitor Ic With Automatic Fan Speed Control
• Manufacturer: Feature Integration Technology Inc.

Power on default: 64h
Power on default: 46h
Power on default: 46h
Power on default: 00h
Power on default: F0h
Power on default: 64h
7-0
7-0
7-0
7-0
8.24. T1 OVT TARGET TEMPERATURE HIGH Index 6Ah
8.25. T1 OVT TARGET TEMPERATURE LOW  Index 6Bh
8.26. T2 OVT TARGET TEMPERATURE HIGH Index 6Ch
Bit
8.27. T2 OVT TARGET TEMPERATURE LOW  Index 6Dh
8.28. FAN1 Full Speed Count Register 0  Index 70h
7-4
3-0
8.29. FAN1 full speed Count Register 1 Index71h
Bit
Bit
Bit
Bit
Bit
FAN1_FULL
TARGET_LOW1
TARGET_LOW2
Reserved
TARGET_HI2
TARGET_HI1
(MSB)
Name
Name
Name
Name
Name
Name
Attribute
Attribute
R/W
RO
Attribute
Attribute
Attribute
Attribute
R/W
R/W
R/W
R/W
Always return 0.
This register indicates the MSB of the FAN1 full speed count. This register can
be auto updated by hardware or program by user. If user programs this register
before hardware, then the hardware will not update this register again.
x 8 directly. And if fan speed is down, the PWMOUT1 will decrease
duty-cycle to 0 when the PWM duty cycle is less than this (value x 4).
When temperature 1 exceeds this value, the OVT will be asserted.
When temperature 1 is lower than this value, the OVT will be asserted.
When temperature 2 exceeds this value, the OVT will be asserted.
When temperature 2 is lower than this value, the OVT will be asserted.
30
Description
Description
Description
Description
Description
Description
July, 2007
F75387
0.27P