W83791G Datasheet, PDF (64/99 Pages) Winbond – Winbond H/W Monitoring IC

W83791D/G
7.72 FAN 3 Configuration Register ⎯ Index 95h (Bank 0)
Power on default: 00h
BIT
NAME
ATTRIBUTE
DESCRIPTION
7
PWM3INV
RO
PWMOUT3 input value if PWMOUT3 as GPIn. Return ‘1’,
the pin 23 status is logic high signal. Read ‘0’, pin23 is logic
low signal.
6
PWM2INV
RO
PWMOUT2 input value if PWMOUT2 as GPIn. Return ‘1’,
the pin 11 status is logic high signal. Read ‘0’, pin11 is logic
low signal.
5
PWM1INV
RO
PWMOUT1 input value if PWMOUT1 as GPIn. Return ‘1’,
the pin 10 status is logic high signal. Read ‘0’, pin10 is logic
low signal.
4
Reserved
Reserved
Reserved
3-2 FAN3_TYPE R/W
FAN 3 PWM Control Type.
00 - Manual PWM Control. (Default)
01 - Thermal Cruise mode.
10 - Fan Speed Cruise Mode.
11 - Reserved.
1
Reserve
R/W
Reserved
0
FAN3_OB
R/W
Enable Fan 3 as Output Buffer. Set to 1, FANPWM3 can
drive logical high or logical low. Default Pin 23 (PWMOUT3)
is open-drain.
7.73 Fan 3 Target Temperature Register/Target Fan 3 Speed Control Register ⎯
Index 96h (Bank 0)
Power on default: 00h
VTIN3 target temperature register for Thermal Cruise mode.
BIT
NAME
ATTRIBUTE
DESCRIPTION
7
Reserved
R/W
Reserved.
6-0 FAN_TAR_T3[6:0]
R/W
Fan 3 Target Temperature. Only for Thermal Cruise
mode. When the temperature 3 over the target
temperature add tolerance temperature, the smart fan
3 duty cycle will up count until the duty cycle obtain to
FFh.
Fan 3 target speed register for Fan Speed Cruise mode.
BIT
NAME
7-0 FAN_TAR_CNT3
[7:0]
ATTRIBUTE
R/W
DESCRIPTION
Target Fan 3 Speed Control. Only for Fan Speed
Cruise Mode. When the fan 3 monitored Fan 3 Count
over the target Fan Count add tolerance, the fan duty
cycle will up/down count until the duty cycle have been
corresponding the monitored speed count.
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Publication Release Date: April 14, 2006
Revision 1.1