W83783S Datasheet, PDF (24/57 Pages) Winbond – MONITORING IC

W83783S
Preliminary
TOI
T_HYST
SMI#
*
*
*Interrupt Reset when Interrupt Status Registers are read
Figure 16-3. One-Time Interrupt Mode
6.5.3 The W83783S temperature sensor 1 Over-Temperature (OVT#) has three modes
(1) Comparator Mode :
Setting Bank1 CR[52h] bit 2 to 0 will set OVT# signal to comparator mode. Temperature
exceeding T_O causes the OVT# output activated until the temperature is less than T_HYST. (
Figure 17)
(2) Interrupt Mode:
Setting Bank1 CR[52h] bit 2 to 1 will set OVT# signal to interrupt mode. Setting Temperature
exceeding T_O causes the OVT# output activated indefinitely until reset by reading temperature
sensor 2 or sensor 3 registers. Temperature exceeding T_O , then OVT# reset, and then
temperature going below T_HYST will also cause the OVT# activated indefinitely until reset by
reading temperature sensor2 or sensor 3 registers. Once the OVT# is activated by exceeding T_O
, then reset, if the temperature remains above T_HYST , the OVT# will not be activated again.(
Figure 17)
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Publication Release Date: April 1999
Revision 0.55