W83627HF/ F/ HG/ G
7.6
OVT# interrupt mode
The W83627HF OVT# signal is only related to temperature sensor 2 and 3（VTIN2 / VTIN3）. They
have two modes：
（1）Comparator Mode：
Setting Bank1/2 CR[52h] bit 2 to 0 will set OVT# signal to comparator mode. Temperature ex-
ceeding TO causes the OVT# output activated until the temperature is less than THYST.（See
Figure 8.12）
（2）Interrupt Mode：
Setting Bank1/2 CR[52h] bit 2 to 1 will set OVT# signal to interrupt mode. Setting Temperature
exceeding TO causes the OVT# output activated indefinitely until reset by reading temperature
sensor 2 or sensor 3 registers. Temperature exceeding TO , then OVT# reset, and then tempera-
ture going below THYST will also cause the OVT# activated indefinitely until reset by reading
temperature sensor2 or sensor 3 registers. Once the OVT# is activated by exceeding TO, then
reset, if the temperature remains above THYST, the OVT# will not be activated again.（See Fig-
ure 8.12）
Figure. 8.12 OVT# Interrupt Mode
Publication Release Date: June 09, 2006
- 41 -
Revision 2.27
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