Intel J1850 FH8065301455200 Manuale Utente
Codici prodotto
FH8065301455200
PCU – Intel
®
Legacy Block (iLB) Overview
1140
Datasheet
23.2.2
Non-Maskable Interrupt
NMI support is enabled by setting the NMI Enable (NMI_EN) bit, at IO Port 70h, Bit 7,
to 1b.
to 1b.
Non-Maskable Interrupts (NMIs) can be generated by several sources, as described in
Table 168. NMI Sources
NMI Source
NMI Source
Enabler/
Disabler
NMI Source
Status
Alternate Configuration
SERR# goes active
NOTE: A SERR# is only generated
internally in the processor)
NSC.SNE
NSC.SNS
All NMI sources may,
alternatively, generate a SMI
by setting
GNMI.NMI2SMIEN=1b
The processor uses
GNMI.NMI2SMIST for
observing SMI status
IOCHK# goes active
NOTE: A IOCHK# is only generated as a
SERIRQ# frame
NSC.INE
NSC.INS
ILB_NMI goes active
NOTE: Active can be defined as being
on the positive or negative edge
of the signal using the
GNMI.GNMIED register bit.
GNMI.GNMIED
GNMI.GNMIS
Software sets the GNMI.NMIN register bit
GNMI.NMIN
GNMI.NMINS