F71872
7.6.3.43 FAN2 Expect count Register-- Index 79h
Bit
Name
R/W Default
Description
7-4 Reserved
3-0 F2_EXPECT (MSB)
-
R
00h
User expect fan2 count value, program this register to control the expect fan2
speed
7.6.3.44 FAN2 Expect count Register-- Index 7Ah
Bit
Name
R/W Default
Description
7-0 F2_EXPECT (LSB)
R
00h User expect fan2 count value, program this register to control the expect
fan2 speed.
7.6.3.45 FAN2 PWM_DUTY -- Index 7Bh
Bit
Name
R/W Default
R/W
Description
7-0 PWM_DUTY2
FFh When FAN2 control is at PWM Duty-cycle mode, this value represents the
duty-cycle.
When FAN2 control is at DC mode, this value represents the DC voltage
output. Each step (LSB) is VCC / 256.
This register is programmable at Manual mode.
At SPEED or TEMPERATURE mode, this register reflects current
FANPWM1 duty-cycle.
7.6.3.46 FAN3 OPERATING Control Register -- Index 80h
Bit
Name
FAN3_SKIP
R/W Default
Description
7
R
-
When this bit is set to 1, FAN3 is not monitored.
When this bit is set to 0, FAN3 is monitored.
6
5
Reserved
FAN3_FORCE_MONI
TOR
-
-
Set to 1, FAN3 speed is monitored every monitor cycle even the fan is
stopped. Set to 0, FAN3 speed will not be monitored at the next monitor cycle if
the fan is stopped.
R/W
0
FAN3_DC_MODE
Set to 1, FAN3 control is set to DC mode.
4
R/W
0
Set to 0, FAN3 control is set to PWM duty-cycle mode.
Set to 1, current FAN3 COUNT will be bypass to F3_FULL_SPEED.
Set to 1, keep FANPWM3 duty-cycle decrease to STOP DUTY and hold.
00: FAN3 operates in SPEED mode. FANPWM3 duty-cycle is
automatically adjusted according to FAN EXPECT register.
01: FAN3 operates in TEMPERATURE mode. FANPWM3 duty-cycle is
automatically adjusted according to current temperature,
1x: FAN3 operates in MANUAL mode. Software set the FANPWM3
duty-cycle directly.
3
2
F3_LATCH_FULL
F3_KEEP_STOP
1-0 F3_MODE
R/W
R/W
R/W
0
0
00
7.6.3.47 FANPWM3 START UP DUTY-CYCLE Index 81h
Bit
Name
R/W Default
R/W
Description
7-0 F3_START_DUTY
30h FANPWM3 will increase duty-cycle from 0 to this value directly.
81
July, 2007
V0.28P
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
