Signal Description
Table 2-30. System Bus Delivery Address Format (Sheet 2 of 2)
Bit
Description
11:4
Enhanced Destination ID: This will be the same as bits 55:48 of the I/O Redirection Table entry for
the interrupt associated with this message.
3
Redirection Hint: This bit is used by the processor host bridge (system bus) to allow the interrupt
message to be redirected.
0 = The message will be delivered to the agent (processor) listed in bits 19:4.
1 = The message will be delivered to an agent with a lower interrupt priority
The Redirection Hint bit will be 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
will be 0.
2
Destination Mode: This bit is used only the Redirection Hint bit is set to 1. If the Redirection Hint bit
and the Destination Mode bit are both set to 1, 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.
1:0
00
Table 2-31. System Bus Delivery Data Format
Bit
Description
31:16
15
0000h
Trigger Mode: 1 = Level, 0 = Edge. Same as the corresponding bit in the I/O Redirection Table for
that interrupt.
14
Delivery Status: 1 = Assert, 0 = Deassert. If using edge-triggered interrupts, then 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.
13:12
11
00
Destination Mode: 1 = Logical, 0 = Physical. Same as the corresponding bit in the Redirection
Table
10:8
7:0
Delivery Mode: This is the same as the corresponding bits in the I/O Redirection Table for that
interrupt.
Vector: This is the same as the corresponding bits in the I/O Redirection Table for that interrupt.
2.16
SMBus Interface
The SMBus address is set upon PWROK by sampling SMBUS[5] and SMBUS[3:1]. When the
pins are sampled, the resulting Intel® 6700PXH 64-bit PCI Hub SMBus address is shown in
Table 2-32.
Table 2-32. SMBus Address Configuration (Sheet 1 of 2)
Bit
Value
7
6
5
4
3
1
1
SMBUS[5]
0
SMBUS[3]
Intel® 6700PXH 64-bit PCI Hub Datasheet
63
INTEL [ INTEL ]
