W83627G Winbond Electronics Corp America, W83627G Datasheet - Page 45

• Manufacturer Part Number: W83627G
• Description: LPC Interface I/O plus Game Port, MIDI Port, Pb-free package
• Manufacturer: Winbond Electronics Corp America

7.6
The W83627HF OVT# signal is only related to temperature sensor 2 and 3（VTIN2 / VTIN3）. They
have two modes：
（1）Comparator Mode：
（2）Interrupt 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）
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）
OVT# interrupt mode
Figure. 8.12 OVT# Interrupt Mode
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W83627HF/ F/ HG/ G
Publication Release Date: June 09, 2006
Revision 2.27