W83627DHG-PT Nuvoton Technology Corporation of America, W83627DHG-PT Datasheet - Page 41

• Manufacturer Part Number: W83627DHG-PT
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83627DHG-PT

• Pin Count: 128
• Lead Free Status / RoHS Status: Compliant

8. HARDWARE MONITOR
8.1
The W83627DHG-P monitors several critical parameters in PC hardware, including power supply
voltages, fan speeds, and temperatures, all of which are very important for a high-end computer
system to work stably and properly.
The W83627DHG-P can simultaneously monitor all of the following inputs:
These inputs are converted to digital values using a built-in, eight-bit analog-to-digital converter (ADC).
In response to these inputs, the W83627DHG-P can generate the following outputs:
The W83627DHG-P provides hardware access to all monitored parameters through the LPC or I
interface and software access through application software, such as Nuvoton’s Hardware Doctor
BIOS. In addition, the W83627DHG-P can generate pop-up warnings or beep tones when a parameter
goes outside of a user-specified range.
The rest of this section introduces the various features of the W83627DHG-P hardware-monitor
capability. These features are divided into the following sections:
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General Description
Nine analog voltage inputs (four intrinsic monitor VBAT, 3VSB, 3VCC and AVCC power; five
externally monitored power)
Five fan tachometer inputs
Three remote temperatures, by thermistor or from the CPU thermal-diode output (voltage or
Current Mode)
One case-open detection signal.
Four PWM (pulse width modulation) or DC fan outputs for the fan speed control
Beep tone output for warnings
SMI#
OVT# signals for system protection events
Access Interfaces
Analog Inputs
Fan Speed Measurement and Control
Smart Fan Control
SMI# interrupt mode
OVT# interrupt mode
Registers and Value RAM
W83627DHG-P/W83627DHG-PT
-31-
Publication Release Date: July 09, 2009
Version 1.94
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