W83791D Datasheet, PDF (33/46 Pages) Winbond – W83791D Winbond H/W Monitoring IC

W83791D
Preliminary
Bipolar Transistor
Temperature Sensor
C
B
2N3904
E
OR
Pentium II/III _D+
CPU
Therminal
Diode
D-
R=30K, 1%
VREF
PIITDx
C=3300pF
R=30K, 1%
W 83791D
PIITDx
C=3300pF
Figure 11.
6.8.3
SMI# interrupt for W83791D Voltage
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
12-1.)
6.8.4
SMI# interrupt for W83791D Fan
SMI# interrupt for fan is Two-Times Interrupt Mode. Fan count exceeding the limit, or exceeding and then
going below the limit (set at value ram index 3Bh and 3Ch) , will causes an interrupt if the previous interrupt
has been reset by reading all the interrupt Status Register. (Figure 12-2.)
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Publication Release Date: Aug, 2001
Revision 0.41