W83782G Nuvoton Technology Corporation of America, W83782G Datasheet - Page 32

• Manufacturer Part Number: W83782G
• Description: IC MONITOR H/W 48-LQFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83782G

• Output Type: I²C™, ISA
• Function: Hardware Monitor
• Topology: ADC, Fan Speed Counter, Register Bank
• Sensor Type: External
• Sensing Temperature: External Sensor
• Output Alarm: No
• 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
• Temperature Sensor Function: Temp Sensor
• Operating Temperature (min): -40C
• Operating Temperature (max): 120C
• Operating Supply Voltage (typ): 5V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

7.17 FAN IN/OUT and BEEP/GPO# Control Register − Index 4Dh
Register Location:
Power on Default Value
Attribute:
Size:
Bit 7: Disable power-on abnormal the monitor voltage including V-Core A and +3.3V. If these voltages
Bit 6: BEEP/GPO# Pin Function Select. Write 1 Select GPO# function. Set 0, select BEEP function.
Bit 5: FAN 3 output value if FANINC3 sets to 0. Write 1, then pin 18 always generate logic high signal.
Bit 4: FAN 3 Input Control. Set to 1, pin 18 acts as FAN clock input, which is default value. Set to 0,
Bit 3: FAN 2 output value if FANINC2 sets to 0. Write 1, then pin 19 always generate logic high signal.
Bit 2: FAN 2 Input Control. Set to 1, pin 19 acts as FAN clock input, which is default value. Set to 0,
Bit 1: FAN 1 output value if FANINC1 sets to 0. Write 1, then pin 20 always generate logic high signal.
Bit 0: FAN 1 Input Control. Set to 1, pin 20 acts as FAN clock input, which is default value. Set to 0,
exceed the limit value, the pin (Open Drain) of BEEP will drives 300Hz and 600Hz frequency
signal. Write 1, the frequency will be disabled. Default is 0. After power on, the system should
set 1 to this bit to 1 in order to disable BEEP.
This bit default 0.
Write 0, pin 18 always generates logic low signal. This bit default 0.
this pin 18 acts as FAN control signal and the output value of FAN control is set by this register
bit 5. This output pin can connect to power PMOS gate to control FAN ON/OFF.
Write 0, pin 19 always generates logic low signal. This bit default 0.
this pin 19 acts as FAN control signal and the output value of FAN control is set by this register
bit 3. This output pin can connect to power NMOS gate to control FAN ON/OFF.
Write 0, pin 20 always generates logic low signal. This bit default 0.
the pin 20 acts as FAN control signal and the output value of FAN control is set by this register t
1. This output pin can connect to power PMOS gate to control FAN ON/OFF.
7
6
4Dh
<7:0> 0001, 0101. Reset by MR.
Read/Write
8 bits
5
4
3
2
1
- 29 -
0
FANINC1
FANOPV1
FANINC2
FANOPV2
FANINC3
FANOPV3
GPOSEL
DIS_ABN
Publication Release Date: April 14, 2005
W83782D/W83782G
Revision 2.0