EP80579 Datasheet, PDF (1134/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
Table 30-18. Interrupt Delivery Address Format
Bits
31:20
19:12
11:04
03
02
01:00
Description
Is always FEEh
Destination ID (DID): This is the same as bits 63:56 of the I/O Redirection Table entry for the
interrupt associated with this message.
Extended Destination ID (EDID): This is the same as bits 55:48 of the I/O Redirection Table
entry for the interrupt associated with this message.
Redirection Hint (DLM): This bit is used by the processor host bridge to allow the interrupt
message to be redirected.
0 = The message is delivered to the agent (processor) listed in bits 19:12.
1 = The message is delivered to an agent with a lower interrupt priority This can be derived from
bits 10:8 in the Data Field (see below).
The Redirection Hint bit is a 1 if bits 10:8 in the delivery mode field associated with corresponding
interrupt are encoded as 001 (Lowest Priority). Otherwise, the Redirection Hint bit is 0
Destination Mode (DSM): This bit is used only when the Redirection Hint bit is set to 1. If the
Redirection Hint bit and the Destination Mode bit are both set to 1, then the logical destination
mode is used, and the redirection is limited only to those processors that are part of the logical
group as based on the logical ID.
Will always be 00b
Table 30-19. Interrupt Delivery Data Format
Bits
31:16
15
14
13:12
11
10:08
07:00
Description
Will always be 0000h
Trigger Mode: 1 = Level,0 = Edge. Same as the corresponding bit in the I/O Redirection Table
for that interrupt.
Delivery Status:
0 = Deassert
1 = Assert
If using edge-triggered interrupts, then the bit will always be 1, since only the assertion is sent.
If using level-triggered interrupts, then this bit indicates the state of the interrupt input.
Will always be 0h
Destination Mode: 1= Logical. 0 = Physical. Same as the corresponding bit in the I/O
redirection table
Delivery Mode: This is the same as the corresponding bits in the I/O Redirection Table for that
interrupt.
000 = Fixed 100 = NMI
001 = Lowest Priority 101 = INIT
010 = SMI/PMI 110 = Reserved
011 = Reserved 111 = ExtINT
Vector: This is the same as the corresponding bits in the I/O Redirection Table for that
interrupt.
Intel^® EP80579 Integrated Processor Product Line Datasheet
1134
August 2009
Order Number: 320066-003US