f75377 Feature Integration Technology Inc., f75377 Datasheet - Page 38

• Manufacturer Part Number: f75377
• Description: Monitor With Automatic Speed Control
• Manufacturer: Feature Integration Technology Inc.

3-0
Bit
Bit
7.52
7.53
7
6
5
4
7
6
5
4
C2h
C3h
C4h
C5h
FAN1LOAD_BEFORE
FAN2LOAD_BEFORE
FAN1 Control Register – Index D0h
FAN2 Control Register – Index D1h
FAN1_NO_STOP
FAN2_NO_STOP
FAN1_INTP_EN
FAN2_INTP_EN
Reserved
Reserved
Name
Name
R/W
R/W
R/W
R/W
-
8’h00
8’h01
8’h03
R/W Default
R/W
R/W
R/W
R/W
R/W Default
R/W
R/W
R/W
R/W
8’hff
R
RPM mode(CR96 bit4=0):
FAN3 expect speed count value (MSB), in auto fan mode(CR96 bit5
register is auto updated by hardware.
Duty mode(CR96 bit4=1):
This byte is reserved byte.
RPM mode(CR96 bit4=0):
FAN3 expect speed count value (LSB) or expect PWM duty , in auto fan mode
this register is auto updated by hardware and read only.
Duty mode(CR96 bit4=1):
The Value programming in this byte is duty value. In auto fan mode(CR96
bit5
Ex: 5
FAN3 full speed count reading (MSB). At the moment of reading this register,
the LSB will be latched. This will prevent from data updating when reading. To
read the fan count correctly, read MSB first and followed read the LSB.
FAN3 full speed count reading (LSB).
0
0
0
0
0
0
0
0
0
255
Set 1 that fan speed will keep current temp. status before system re-boot
up.
Set 1 that FAN1 will not stop but keep at FAN1_MIN_DUTY x 4
Reserved
Set 1 will enable the interpolation of the fan expect table.
Reserved
Set 1 that fan speed will keep current temp. status before system re-boot
up.
Set 1 that FAN2 will not stop but keep at FAN1_MIN_DUTY x 4
Reserved
Set 1 will enable the interpolation of the fan expect table.
0) this register is updated by hardware.
5*100/255 %
100%
38
Description
Description
F75377
0) this
March.
V0.12P
, 2008