W83792AG Nuvoton Technology Corporation of America, W83792AG Datasheet - Page 43

• Manufacturer Part Number: W83792AG
• Description: IC MONITOR H/W 48-LQFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83792AG

• Output Type: I²C™
• Function: Hardware Monitor
• Topology: ADC, Fan Control, Register Bank
• Sensor Type: External
• Sensing Temperature: External Sensor
• 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
• Temperature Sensor Function: Temp Sensor
• Resolution: 10b
• Operating Temperature (min): 0C
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Limit RAM setups the high/low limit for each channel in Value RAM. While exceeding these limits,
system will take certain action determined by prior setups.
FAN Count high limits should be the limit for lowest fan speed. This is because the slower the fan is,
the more the internal clock will be counted by internal clock.
Setting all ones to the high limits for voltages and fans (0111 1111 binary for temperature) means
interrupt will never be generated except the case when voltages go below the low limits.
8.8
Reset Condition: Resume Reset, INIT.
Configuration Register controls the system reset, stop, power down and warning output mode.
Configuration
MNEMONIC BANK INDEX ATTR BIT 7
7
6
5
4
3
BIT
VcoreA Limit Setup
VcoreB Limint Setup
VIN0~VIN3 Limit Setup
5VCC Limit Setup
Configuration Register ⎯ Index 40h (Bank 0)
Initialization
IRQ output
IRQ
Polarity
ENWDT
INT_Clear
CR[2B/2C] = [Desired Voltage]/0.008;
CR[2D/2E] = [Desired Voltage]/0.008;
CR[2F~36] = [Desired Voltage] / 0.016;
CR[37/38] = [Desired Voltage] / 0.024;
NAME
0
40
ATTRIBUTE
R/W
R/W
R/W
R/W
R/W
RW
INIT IRQEDGE IRQPOL ENWDT INT_CLR EN_IRQ EN_SMI START
0
Set one restores power on default value to all registers except
When set to 0, IRQ active high. Set to 1, IRQ active low.
Set this bit to 1 will enable Watch Dog Timer function. Watch
the Serial Bus Address register. This bit clears itself since the
power on default is zero.
Set 0 , IRQ output level signal . Set 1, output 200 us pulse
signal. Default is 0.
Default is 0.
dog timer function will reset system(pin 47) while it timeouts.
the contents of Interrupt Status Registers. The device will stop
monitoring at last channel. It will resume upon clearing of this
bit.
Note: The outputs of Interrupt pins will not be cleared if the
user writes a zero to this location after an interrupt has
occurred unlike "INT_Clear'' bit.
A one disables the SMI# and IRQ# outputs without affecting
BIT 6
0
- 37 -
BIT 5
0
BIT 4
DESCRIPTION
0
Publication Release Date: April 26, 2006
W83792AD/AG/D/G
BIT 3
0
BIT 2
0
BIT 1
0
Revision 0.9
BIT 0
1