W83791G Nuvoton Technology Corporation of America, W83791G Datasheet - Page 54

• 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

Diode Selection Register ⎯ Index 59h (Bank 0) , continued.
7.45 Reserved ⎯ Index 5Ah - (Bank 0)
7.46 FANIN 4/5 Control ⎯ Index 5Bh (Bank 0)
Power on default: 00h; Reset by MR.
7.47 FAN 4/5 Divisor Control ⎯ Index 5Ch (Bank 0)
Power on default: 00h
4
3-0
7
6
5:0
7
6:4
3
BIT
BIT
BIT
FANINC5
FANINC4
Reserved
SELPIIV1
Reserved
FAN5_OB
FAN_DIV5
FAN4_OB
NAME
NAME
NAME
ATTRIBUTE
R/W
R/W
R/W
ATTRIBUTE
R/W
R/W
R/W
ATTRIBUTE
Enable Fan 5 as Output Buffer. Set to 1, FANPWM5 can
drive logical high or logical low.
FAN5 Speed Divisor.
<6:4> = 000 - divide by 1(Default);
<6:4> = 001 - divide by 2;
<6:4> = 010 - divide by 4;
<6:4> = 011 - divide by 8.
<6:4> = 100 - divide by 16.
<6:4> = 101 - divide by 32.
<6:4> = 110 - divide by 64
<6:4> = 111 - divide by 128.
Enable Fan 4 as Output Buffer. Set to 1, FANPWM4 can
drive logical high or logical low.
FAN5 Input Control. Set to 1, pin 47 acts as FAN clock
input. Set to 0, this pin 47 acts as FAN control signal,
which is default value.
power PMOS gate to control FAN ON/OFF.
FAN4 Input Control. Set to 1, pin 46 acts as FAN clock
input. Set to 0, this pin 46 acts as FAN control signal,
which is default value. This output pin can connect to
power PMOS gate to control FAN ON/OFF.
Reserved
Temperature sensor diode 1. When set to 1, select
Pentium II compatible Diode. Set to 0 to select 2N3904
Bipolar mode
Reserved
- 48 -
DESCRIPTION
DESCRIPTION
DESCRIPTION
Publication Release Date: April 14, 2006
This output pin can connect to
W83791D/G
Revision 1.1