f75334 Feature Integration Technology Inc., f75334 Datasheet - Page 46

• Manufacturer Part Number: f75334
• Description: Performance Controller
• Manufacturer: Feature Integration Technology Inc.

Address
6-0 BOUND1TMP2
6-0 BOUND2TMP2
6-0 BOUND3TMP2
Bit
Bit
Bit
Fan2 Index B0h- BFh
8.2.47 VT2 BOUNDARY 1 TEMPERATURE – Index B6h
8.2.48 VT2 BOUNDARY 2 TEMPERATURE – Index B7
8.2.49 VT2 BOUNDARY 3 TEMPERATURE – Index B8h
7
7
7
B0h
B1h
B2h
B3h
B4h
B5h
Reserved
Reserved
Reserved
Attribute
Name
Name
Name
R/W
R/W
R/W
R/W
RO
RO
Default
Value
8’h00
8’h01
8’h03
8’h0f
R/W Default
R/W
R/W Default
R/W
R/W Default
R/W
8’hff
8’hff
RO
RO
RO
(60
(50
(40
3Ch
28h
32
Description
FAN2 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.
FAN2 count reading (LSB).
RPM mode(CR96 bit2=0):
FAN2 expect speed count value (MSB), in auto fan mode(CR96 bit3
register is auto updated by hardware.
Duty mode(CR96 bit2=1):
This byte is reserved byte.
RPM mode(CR96 bit2=0):
FAN2 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 bit2=1):
The Value programming in this byte is duty value. In auto fan mode(CR96
bit3
FAN2 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.
FAN2 full speed count reading (LSB).
0
0
0
o
o
o
Ex:
C)
C)
C)
Return 0 when read.
The 1
When VT2 temperature is exceed this boundary, FAN2 expect value will
load from segment 1 register (index BA)h.
When VT2 temperature is below this boundary – hysteresis, FAN2 expect
value will load from segment 2 register (index BAh).
Return 0 when read.
The 2
When VT2 temperature is exceed this boundary, FAN2 expect value will
load from segment 2 register (index BB)h.
When VT2 temperature is below this boundary – hysteresis, FAN2 expect
value will load from segment 3 register (index BBh).
Return 0 when read.
The 3
When VT2 temperature is exceed this boundary, FAN2 expect value will
load from segment 3 register (index BC)h.
When VT2 temperature is below this boundary – hysteresis, FAN2 expect
value will load from segment 4 register (index BCh).
0) this register is updated by hardware.
255
5
st
st
st
BOUNDARY temperature for VT2 in temperature mode.
BOUNDARY temperature for VT2 in temperature mode.
BOUNDARY temperature for VT2 in temperature mode.
5*100/255 %
100%
39
Description
Description
Description
F75334
July, 2007
0) this
V0.25P