F71869A
The meaning of this register is depending on the
FAN3_MODE(CR96)
80h
(50%)
2’b00: The value that set in this byte is the relative expect fan speed
% of the full speed in this temperature section.
2’b01: The value that set in this byte is mean the expect PWM
duty-cycle in this temperature section.
7-0
SEC5SPEED3
R/W
6.6.97 FAN3 Temperature Mapping Select – Index CFh
Bit
Name
FAN3_TEMP_
SEL_DIG
R/W Default
Description
This bit companies with FAN3_TEMP_SEL select the temperature
source for controlling FAN3.
7
R/W
0
Set this bit to select FAN3 PWM output frequency.
0: 23.5 kHz
FAN3_PWM_
FREQ_SEL
6
R/W
0
1: 220 Hz
5
4
FAN3_UP_T_EN
FAN3_
R/W
R/W
0
1
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.
INTERPOLATION_EN
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.
FAN3_JUMP_
HIGH_EN
3
R/W
1
1: The FAN3 duty will directly jumps to the value of SEC1SPEED3
register.
This bit only activates in duty mode.
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.
FAN3_JUMP_
LOW_EN
2
R/W
1
1: The FAN3 duty will directly jumps to the value of SEC2SPEED3
register.
This bit only activates in duty mode.
105
Oct., 2011
V0.19P
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
