NQ5000P S L9TN Intel, NQ5000P S L9TN Datasheet - Page 101
NQ5000P S L9TN
Manufacturer Part Number
NQ5000P S L9TN
Description
Manufacturer
Intel
Datasheet
1.NQ5000P_S_L9TN.pdf
(530 pages)
Specifications of NQ5000P S L9TN
Mounting
Surface Mount
Lead Free Status / RoHS Status
Not Compliant
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Register Description
3.8.6.3
Table 3-31. XTPR Index
Intel® 5000P/5000V/5000Z Chipset Memory Controller Hub (MCH) Datasheet
XTPR[7:0] - External Task Priority Register
These registers control redirectable interrupt priority for xAPIC agents connected to the
MCH. Up to four agents on each bus are supported. These agents may be two dual core
processors each with two threads or four single core processors. The xAPIC
architecture provides for lowest priority delivery through interrupt redirection by the
MCH. If the redirectable “hint bit” is set in the xAPIC message, the chipset may redirect
the interrupt to another agent. Redirection of interrupts can be applied to both I/O
interrupts and IPIs.
Each register contains the following fields:
The XTPR registers are modified by a front side bus xTPR_Update transaction. In
addition, the XTPR registers can be modified by software.
These registers are used for lowest priority delivery through interrupt redirection by the
chipset.
Device:
Function:
Offset:
Version:
1. Agent priority (Task Priority)
2. APIC enable bit (TPR Enable)
3. Logical APIC ID (LOGID)
4. Processor physical APIC ID (PHYSID)
31:2
Bit
1
0
Index
3
2
1
0
Attr
RO
RO
RV
16
0
7Ch, 74h
Intel 5000P Chipset, Intel 5000V Chipset, Intel 5000Z Chipset
0 for FSB0, 1 for FSB1
Ab[29]
Ab[30] OR Ab[22]
Ab[21]
Default
0h
0
0
Reserved.
2SOCKET: 2 Sockets present on this FSB
Set when
are more than 1 processors present on this FSB.
2CORE: 2 Cores present
Set when
is more than 1 core in a processor.
Note: Mixing single core with dual-core processors will be recognized as dual-
core processor on this FSB.
Value
Intel 5000P Chipset MCH
Intel 5000P Chipset MCH
Description
has seen Ab[22] asserted, indicating there
has seen Ab[30] asserted, indicating there
101
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