F71862
To
T
HYST
OVT#
Fig 7-2
Temperature PME#
PME# interrupt for temperature is shown as figure 7-3. Temperature exceeding high
limit or going below hysteresis will cause an interrupt if the previous interrupt has been reset
by writing “1” all the interrupt Status Register.
To
T HYST
SMI#
*
*
(pulse mode)
*
*
(level mode
active low)
*Interrupt Reset when Interrupt Status Registers are written 1
Fig 7-3
Fan speed count
Inputs are provided by the signals from fans equipped with tachometer outputs. The
level of these signals should be set to TTL level, and maximum input voltage cannot be over
5V. If the input signals from the tachometer outputs are over the 5V, the external trimming
circuit should be added to reduce the voltage to obtain the input specification. The normal
circuit and trimming circuits are shown as follows:
44
July, 2008
V.28P
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
