W83791G Nuvoton Technology Corporation of America, W83791G Datasheet - Page 64

• Manufacturer Part Number: W83791G
• Description: IC MONITOR H/W 48-LQFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83791G

• Function: Hardware Monitor
• Topology: ADC
• Sensor Type: External
• Sensing Temperature: External Sensor
• Output Type: I²C™
• Output Alarm: Yes
• Output Fan: Yes
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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