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GXM Datasheet(PDF) 176 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
No. de pieza GXM
Descripción Electrónicos  Geode??GXm Processor Integrated x86 Solution with MMX Support
PDF  244 Pages
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Fabricante Electrónico  NSC [National Semiconductor (TI)]
Página de inicio  http://www.national.com
Logo NSC - National Semiconductor (TI)

GXM Datasheet(HTML) 176 Page - National Semiconductor (TI)

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176
Revision 3.1
Power Management (Continued)
6.5.2
Initiating Suspend with HALT
The CPU also enters Suspend mode as a result of execut-
ing a HALT instruction if the SUSP_HALT bit in CCR2
(Index C2h[3]) is set. Suspend mode is then exited upon
recognition of an NMI, an unmasked INTR, or an SMI#.
Normally SUSPA# is deactivated within six SYSCLKS
from the detection of an active interrupt. However, the
deactivation of SUSPA# may be delayed until the end of
an active refresh cycle.
The CPU also allows PCI accesses during a HALT-initi-
ated Suspend mode. If the CPU is in the middle of a PCI
access when the Halt instruction is executed, the asser-
tion of SUSPA# will be delayed until the PCI access is
completed.
Figure 6-2. HALT-Initiated Suspend Mode
SYSCLK
FRAME#
C/BE[3:0]#
AD[15:0]
IRDY#
INTR, NMI,
SUSPA#
O
X
I
I
X
X
SMI#
HALT



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