NQ5000P S L9TN Intel, NQ5000P S L9TN Datasheet - Page 158
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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3.8.11.13
158
PEXRTSTS[7:2, 0] - PCI Express Root Status Register
The PCI Express Root Status register specifies parameters specific to the root
complex port.
a.
Notes:
Device:
Function:
Offset:
Version:
Device:
Function:
Offset:
Version:
Device:
Function:
Offset:
Version:
31:18
15:0
Bit
17
16
PMEINTEN defined in PEXRTCTRL has to be set for PM interrupts to be generated. For non-MSI PM
interrupts, the PMESTATUS bit in each of the PEXRTSTS[2:7] registers are wired OR together and when set,
the MCH will send the “Assert_PMEGPE” message to the Intel 631xESB/632xESB I/O Controller Hub for
power management. When all the bits are clear, it will send the “Deassert_PMEGPE” message. PMEINTEN
defined in PEXRTCTRL has to be set for PM interrupts to be generated. PM_PME events that generate MSI
will depend on the MSIEN field in
Chapter.
RWC
Attr
RO
RO
RV
0, 2-3
0
8Ch
Intel 5000P Chipset, Intel 5000V Chipset, Intel 5000Z Chipset
4-5
0
8Ch
Intel 5000Z Chipset
4-7
0
8Ch
Intel 5000P Chipset
Default
0000h
0h
0h
0h
Reserved.
PMEPEND: PME Pending
This field indicates that another PME is pending when the PME Status bit is
set. When the PME Status bit is cleared by software; the pending PME is
delivered by hardware by setting the PME Status bit again and updating the
Requestor ID appropriately. The PME pending bit is cleared by hardware if no
more PMEs are pending.
Note:
PMESTATUS: PME Status
This field indicates status of a PME that is underway in the PCI Express port.
1: PME was asserted by a requester as indicated by the PMEREQID field
This bit is cleared by software by writing a ‘1’. Subsequent PMEs are kept
pending until the PME Status is cleared.
PMEREQID: PME Requester ID
This field indicates the PCI requester ID of the last PME requestor.
Intel® 5000P/5000V/5000Z Chipset Memory Controller Hub (MCH) Datasheet
Section
The Intel 5000P Chipset MCH can handle two outstanding PM_PME
messages in its internal queues of the Power Management controller
per port. If the downstream device issues more than 2 PM_PME
messages successively, it will be dropped.
3.8.10.3. Refer to the PM interrupt flow in Power Management
a
Description
Register Description
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