W83627THF Nuvoton Technology Corporation of America, W83627THF Datasheet - Page 38

• Manufacturer Part Number: W83627THF
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83627THF

• Pin Count: 128
• Lead Free Status / RoHS Status: Not Compliant

5.5.3
Smart Fan control system can be disabled and the fan speed control algorithmic can be programmed
by BIOS or application software. The programming method is just as section 5.4.2.
5.6
The SMI#/IRQIN1 pin(pin2) is a multi-function pin. The SMI# function is selected at Configuration
Register CR[2Ah] bit 2.
5.6.1
SMI# interrupt for voltage is Two-Times Interrupt Mode. Voltage exceeding high limit or going below
low limit will causes an interrupt if the previous interrupt has been reset by reading all the interrupt
Status Register. (Figure 5-12 )
5.6.2
SMI# interrupt for fan is Two-Times Interrupt Mode. Fan count exceeding the limit, or exceeding and
then going below the limit, will causes an interrupt if the previous interrupt has been reset by reading
all the interrupt Status Register. (Figure 5-13 )
SMI# interrupt mode
Manual Control Mode
Voltage SMI# mode :
Fan SMI# mode :
SMI#
Low limit
High limit
Figure 5-12
*Interrupt Reset when Interrupt Status Registers are read
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W83627THF/W83627THG
Publication Release Date: September 26, 2006
Fan Count limit
SMI#
Figure 5-13
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Revision 1.2
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