NH82801ERSL8WB Intel, NH82801ERSL8WB Datasheet - Page 368
NH82801ERSL8WB
Manufacturer Part Number
NH82801ERSL8WB
Description
Manufacturer
Intel
Datasheet
1.NH82801ERSL8WB.pdf
(671 pages)
Specifications of NH82801ERSL8WB
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LPC Interface Bridge Registers (D31:F0)
368
NOTE: Delivery Mode encoding:
000 = Fixed. Deliver the signal on the INTR signal of all processor cores listed in the destination. Trigger Mode
001 = Lowest Priority. Deliver the signal on the INTR signal of the processor core that is executing at the lowest
010 = SMI (System Management Interrupt). Requires the interrupt to be programmed as edge triggered. The
011 = Reserved
100 = NMI. Deliver the signal on the NMI signal of all processor cores listed in the destination. Vector information
101 = INIT. Deliver the signal to all processor cores listed in the destination by asserting the INIT signal. All
110 = Reserved
111 = ExtINT. Deliver the signal to the INTR signal of all processor cores listed in the destination as an interrupt
10:8
Bit
7:0
11
can be edge or level.
priority among all the processors listed in the specified destination. Trigger Mode can be edge or level.
vector information is ignored but must be programmed to 0s for future compatibility. — not supported
is ignored. NMI is treated as an edge triggered interrupt even if it is programmed as level triggered. For
proper operation this redirection table entry must be programmed to edge triggered. The NMI delivery
mode does not set the RIRR bit. If the redirection table is incorrectly set to level, the loop count will
continue counting through the redirection table addresses. Once the count for the NMI pin is reached
again, the interrupt will be sent again. — not supported
addressed local APICs will assume their INIT state. INIT is always treated as an edge triggered interrupt
even if programmed as level triggered. For proper operation this redirection table entry must be
programmed to edge triggered. The INIT delivery mode does not set the RIRR bit. If the redirection table is
incorrectly set to level, the loop count will continue counting through the redirection table addresses. Once
the count for the INIT pin is reached again, the interrupt will be sent again. — not supported
that originated in an externally connected 8259A compatible interrupt controller. The INTA cycle that
corresponds to this ExtINT delivery will be routed to the external controller that is expected to supply the
vector. Requires the interrupt to be programmed as edge triggered.
Destination Mode — R/W. This field determines the interpretation of the Destination field.
0 = Physical. Destination APIC ID is identified by bits 59:56.
1 = Logical. Destinations are identified by matching bit 63:56 with the Logical Destination in the
Delivery Mode — R/W. This field specifies how the APICs listed in the destination field should act
upon reception of this signal. Certain Delivery Modes will only operate as intended when used in
conjunction with a specific trigger mode. These encodings are listed in the note below.
Vector — R/W. This field contains the interrupt vector for this interrupt. Values range between 10h
and FEh.
Destination Format Register and Logical Destination Register in each Local APIC.
Description
Intel
®
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