W83627DHG-PT Nuvoton Technology Corporation of America, W83627DHG-PT Datasheet - Page 69

• Manufacturer Part Number: W83627DHG-PT
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83627DHG-PT

• Pin Count: 128
• Lead Free Status / RoHS Status: Compliant

8.7.1.3. Temperature SMI# Mode
The SMI# pin can create interrupts that depend on the temperatures measured by SYSTIN, CPUTIN,
and AUXTIN. These interrupts are divided into two parts, one for SYSTIN and the other for CPUTIN /
AUXTIN.
8.7.1.3.1. Temperature Sensor 1 (SYSTIN) SMI# Interrupt
The SMI# pin has four interrupt modes with SYSTIN.
(1) Shut-down Interrupt Mode
(2) Comparator Interrupt Mode
In this mode, the SMI# pin can create an interrupt when the current temperature rises above T
or Shut-down mode high limit temperature, and when the current temperature falls below T
Shut-down mode low limit temperature. Once the temperature rises above T
generates an interrupt, this mode does not generate additional interrupts, even if the temperature
remains above T
all the interrupt status registers, or subsequent events do not generate interrupts, except the first
time current temperature rises above Shut-down mode high limit temperature. This is illustrated in
the following figure.
This mode is enabled by setting T
Bank0 Index 40h, bit 4 to 1.
This mode is enabled by setting T
In this mode, the SMI# pin can create an interrupt as long as the current temperature exceeds T
(Over Temperature). This interrupt can be reset by reading all the interrupt status registers, or
subsequent events do not generate interrupts. If the interrupt is reset, the SMI# pin continues to
create interrupts until the temperature goes below T
High Limit Temperature
High Limit Temperature
Low Limit Temperature
Low Limit Temperature
Shut-down mode
Shut-down mode
Shut-down mode
Shut-down mode
SMI#
SMI#
T
T
T
T
HTST
HTST
OL
OL
OL
, until the temperature falls below T
*
*
* Interrupt Reset when Interrupt Status Registers are read
* Interrupt Reset when Interrupt Status Registers are read
*
*
HYST
Shut-down Interrupt Mode
HYST
W83627DHG-P/W83627DHG-PT
(Temperature Hysteresis) to 127°C.
(Temperature Hysteresis) lower than T
-59-
*
*
O
. This is illustrated in the figure below.
HYST
*
*
. This interrupt must be reset by reading
Publication Release Date: July 09, 2009
*
*
*
*
*
*
OL
, however, and
OL
and setting
Version 1.94
HYST
or
OL
O