W83637HF Winbond Electronics Corp America, W83637HF Datasheet - Page 39
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W83637HF
Manufacturer Part Number
W83637HF
Description
Description = LPC I/o Plus H/w Monitor, Smart Fan Control, Smart Card (PC/SC) Reader, Memory Stick Reader I/F, Sd/mmc Card Reader I/f ;; Package = QFP 128
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W83637HF.pdf
(149 pages)
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6.5.3 Manual Control Mode
Smart Fan control system can be disabled and the fan speed control algorithem can be progrmmed by
BIOS or application software. The programming method is just as section 6.4.2.
6.6 SMI# Interrupt Mode
The SMI#/OVT# pin (pin105) is a multi-function pin. The function is selected at Configuration Register
CR[28h] bit 6.
6.6.1 Voltage SMI# mode
SMI# interrupt for voltage is Two-Times Interrupt Mode. Voltage exceeding high limit or going below
6.6.2 Fan SMI# mode
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 6.10)
low limit will causes an interrupt if the previous interrupt has been reset by reading all the
interrupt Status Register. (Figure 6.9)
SMI#
Low limit
High limit
Figure 6.9
*Interrupt Reset when Interrupt Status Registers are read
*
*
*
*
- 34 -
Fan Count limit
SMI#
Publication Release Date: June 25, 2003
Figure 6.10
W83637HF
*
Revision 1.3
*
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