W83627DHG Datasheet, PDF (64/268 Pages) Winbond – WINBOND LPC I/O

W83627DHG
T_OI
T_HYST
SMI#
*
*
*Interrupt Reset when Interrupt Status Registers are read
One-Time Interrupt Mode
7.7.1.3.2. Temperature Sensor 2(CPUTIN) And Sensor 3(AUXTIN) SMI# Interrupt
The SMI# pin has two interrupt modes with CPUTIN / AUXTIN.
(1) Comparator Interrupt Mode
This mode is enabled by setting Bank0 Index 4Ch, bit 6, to one.
In this mode, the SMI# pin can create an interrupt when the current temperature exceeds T_O (Over
Temperature) and continues to create interrupts until the temperature falls below T_HYST. This
interrupt can be reset by reading all the interrupt status registers, or subsequent events do not
generate interrupts. This is illustrated in the figure below.
T_OI
T_OI
T_HYST
T_HYST
SMI#
SMI#
*
*
*
*
*
*
*Interrupt Reset when Interrupt Status Registers are read
Comparator Interrupt Mode
Interrupt Mode
*
*
Two-Time
Publication Release Date: Aug, 22, 2007
-52-
Version 1.4