F71858 Datasheet, PDF (52/66 Pages) Feature Integration Technology Inc. – Hardware KBC with ACPI, Temp. and Fan Control

F71858
Address
C0h
C1h
C2h
C3h
C4h
C5h
Attribute
RO
RO
R/W
R/W
R/W
R/W
Default
Value
8’h0F
8’hff
8’h00
8’h01
8’h03
8’hff
Description
FAN3 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 count reading (LSB).
RPM mode(CR96 bit4=0):
FAN3 expect speed count value (MSB), in auto fan mode(CR96 bit5Î0) this
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
bit5Î0) this register is updated by hardware.
Ex: 5Î 5*100/255 %
255 Î 100%
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).
7.4.3.53 T0 BOUNDARY 1 TEMPERATURE – Index C6h
Bit
Name
R/W Default
Description
7
Reserved
RO 0 ^{Return 0 when read.}
46h ^{The 1st BOUNDARY temperature for T0 in temperature mode.}
(70^oC) ^{When T0 temperature is exceed this boundary, FAN3 expect value will}
6-0 BOUND1TEMP3 R/W
load from segment 1 register (index CA)h.
When T0 temperature is below this boundary – hysteresis, FAN3 expect
value will load from segment 2 register (index CAh).
7.4.3.54 T0 BOUNDARY 2 TEMPERATURE – Index C7h
Bit
Name
R/W Default
Description
7
Reserved
RO 0 ^{Return 0 when read.}
3C ^{The 2st BOUNDARY temperature for T0 in temperature mode.}
(60^oC) ^{When T0 temperature is exceed this boundary, FAN3 expect value will}
6-0 BOUND2TEMP3 R/W
load from segment 2 register (index CB)h.
When T0 temperature is below this boundary – hysteresis, FAN3 expect
value will load from segment 3 register (index CBh).
7.4.3.55 T0 BOUNDARY 3 TEMPERATURE – Index C8h
Bit
Name
R/W Default
Description
7
Reserved
RO 0 ^{Return 0 when read.}
32h ^{The 3st BOUNDARY temperature for T0 in temperature mode.}
(50^oC) ^{When T0 temperature is exceed this boundary, FAN3 expect value will}
6-0 BOUND3TEMP3 R/W
load from segment 3 register (index CC)h.
When T0 temperature is below this boundary – hysteresis, FAN3 expect
value will load from segment 4 register (index CCh).
52
July, 2007
V.26P