AMD-K6-2E/400AFR AMD [Advanced Micro Devices], AMD-K6-2E/400AFR Datasheet - Page 140
AMD-K6-2E/400AFR
Manufacturer Part Number
AMD-K6-2E/400AFR
Description
Manufacturer
AMD [Advanced Micro Devices]
Datasheet
1.AMD-K6-2E400AFR.pdf
(332 pages)
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AMD-K6™-2E Processor Data Sheet
5.44
Pin Attribute
Pin Location
Summary
Driven
122
SMIACT# (System Management Interrupt Active)
Output
AG-03
The processor acknowledges the assertion of SMI# with the
assertion of SMIACT# to indicate that the processor has
entered system management mode (SMM). The system logic
can use SMIACT# to enable SMM memory. See “SMI# (System
Management Interrupt)” on page 121 for more details.
See “System Management Mode (SMM)” on page 217 for more
details regarding SMM.
The processor asserts SMIACT# after the last BRDY# of the last
pending bus cycle is sampled asserted (including all pending
write cycles) and after EWBE# is sampled asserted (if EWBE#
is masked off, then SMIACT# is not affected by EWBE#).
SMIACT# remains asserted until after the last BRDY# of the
last pending bus cycle associated with exiting SMM is sampled
asserted.
SMIACT# remains asserted during any flush, internal snoop, or
writeback cycle due to an inquire cycle.
Preliminary Information
Signal Descriptions
22529B/0—January 2000
Chapter 5
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