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W83637HF_06 Datasheet, PDF (42/151 Pages) Winbond – LPC I/O | |||
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W83637HF/HG
6.7 OVT# Interrupt Mode
The SMI#/OVT# pin (pin105) is a multi-function pin. The function is selected at Configuration
Register CR[28h] bit 6. The OVT# mode selection bits are at Bank0 Index18h bit4, Bank1
Index52h bit1and Bank2 Index52h bit1.
(1) Comparator Mode
Temperature exceeding TO causes the OVT# output activated until the temperature is less than
THYST. (Figure 6.16)
(2) Interrupt Mode
Temperature exceeding TO causes the OVT# output activated indefinitely until reset by reading
temperature sensor registers. Temperature exceeding TO, then OVT# reset, and then temperature
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.(Figure 6.16)
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Publication Release Date: March, 2006
Revision 1.6
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