Analog Devices ADSP-SC58 Series Hardware Reference Manual page 2023

Root Status Register
The
PCIE_RC_STAT_[n]
PRID (R)
PCIE Cap Pme Req Id
PMEPND (R)
PCIE Cap Pme Pending
Figure 29-198: PCIE_RC_STAT_[n] Register Diagram
Table 29-207: PCIE_RC_STAT_[n] Register Fields
Bit No.
(Access)
17 PMEPND
(R/NW)
16 PME
(R/W)
15:0 PRID
(R/NW)
ADSP-SC58x/ADSP-2158x SHARC+ Processor Hardware Reference
register provides information about PCI Express device specific parameters.
15 14 13 12 11 10
0 0 0 0 0 0
31 30 29 28 27 26 25
0 0 0 0 0 0
Bit Name
PCIE Cap Pme Pending.
The PCIE_RC_STAT_[n].PMEPND bit indicates that another PME is pending
when the PME Status bit is Set. When the PME Status bit is cleared by software; the
PME is delivered by hardware by setting the PME Status bit again and updating the
PME Requester ID field appropriately. The PME Pending bit is cleared by hardware if
no more PMEs are pending.
PCIE Cap Pme Status.
The PCIE_RC_STAT_[n].PME bit indicates that PME was asserted by the PME
Requester indicated in the PME Requester ID field. Subsequent PMEs are kept pend-
ing until the status register is cleared by software by writing a 1. Default value of this
bit is 0.
PCIE Cap Pme Req Id.
The PCIE_RC_STAT_[n].PRID bit field indicates the PCI Requester ID of the
last PME Requester. This field is only valid when the PME Status bit is Set.
9 8 7 6 5 4 3 2
0 0 0 0 0 0 0 0
24 23 22 21 20 19 18 17
0 0 0 0 0 0 0 0
Description/Enumeration
ADSP-SC58x PCIE Register Descriptions
1 0
0 0
16
0 0
PME (R/W)
PCIE Cap Pme Status
29–319