Intel 82496 CACHE CONTROLLER User Manual page 314

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ntel
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HARDWARE INTERFACE
5.2.2.124. SMIACT#
SMIACT# System Power Management Interrupt Active
Indicates that the CPU is operating in System Management Mode.
Output from Pentium processor (pin T05)
Asynchronous
Signal Description
Refer to the Pentium
™
Processor Data Book for a detailed description of this signal.
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