F71862
C5h
R/W
8’hff
FAN3 full speed count reading (LSB).
VT3 BOUNDARY 1 TEMPERATURE – Index C6h
Bit
Name
R/W Default
Description
Return 0 when read.
7
Reserved
RO
0
The 1st BOUNDARY temperature for VT3 in temperature mode.
When VT3 temperature is exceed this boundary, FAN3 expect value will
load the full speed duty 8’hFF.
3Ch
(60oC)
6-0
BOUND1TMP3
R/W
When VT3 temperature is below this boundary – hysteresis, FAN3 expect
value will load from segment 1 register (index CBh).
VT3 BOUNDARY 2 TEMPERATURE – Index C9
Bit
Name
R/W Default
Description
Return 0 when read.
7
Reserved
RO
0
The 2st BOUNDARY temperature for VT3 in temperature mode.
When VT3 temperature is exceed this boundary, FAN3 expect value will
load from segment 1 register (index CBh).
1Eh
(30oC)
6-0
BOUND2TMP3
R/W
When VT3 temperature is below this boundary – hysteresis, FAN3 expect
value will load from segment 2 register (index CEh).
FAN3 SEGMENT 1 SPEED COUNT – Index CBh
Bit
Name
R/W Default
Description
The value that set in this byte is mean the expect PWM duty-cycle in this
temperature section.
D9h
R/W
7-0
SEC1SPEED3
(85%)
FAN3 SEGMENT 2 SPEED COUNT
– Index CEh
Bit
Name
R/W Default
Description
The value that set in this byte is mean the expect PWM duty-cycle in this
temperature section.
80h
R/W
7-0
SEC2SPEED3
(50%)
FAN3 Temperature Mapping Select – Index CFh
Bit
7-6
5
Name
Reserved
R/W Default
Description
Reserved
--
0
0
0
Set 1 to force FAN3 to full speed if any temperature over its high limit.
Set 1 will enable the interpolation of the fan expect table.
FAN3_UP_T_EN
FAN3_INTERPOLATION_
EN
R/W
4
R/W
This register controls the FAN3 duty movement when temperature over
highest boundary.
0: The FAN3 duty will increases with the slope selected by
FAN3_RATE_SEL register (Index 9Bh).
1: The FAN3 duty will directly jumps to full speed.
This register controls the FAN3 duty movement when temperature under
(highest boundary – hysteresis).
0: The FAN3 duty will decreases with the slope selected by
FAN3_RATE_SEL register (Index 9Bh).
1
3
FAN3_JUMP_HIGH_EN R/W
FAN3_JUMP_LOW_EN R/W
1
2
1: The FAN3 duty will directly jumps to the value of SEC1SPEED3
register.
62
July, 2008
V.28P
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
