ATTR_53 (PCIE_ATTRIB) Register - UG1087

Zynq UltraScale+ Devices Register Reference (UG1087)

Document ID
UG1087
Release Date
2024-03-13
Revision
1.10

ATTR_53 (PCIE_ATTRIB) Register Description

Register NameATTR_53
Offset Address0x00000000D4
Absolute Address 0x00FD4800D4 (PCIE_ATTRIB)
Width32
TyperwNormal read/write
Reset Value0x00003D48
DescriptionATTR_53

This register should only be written to during reset of the PCIe block

ATTR_53 (PCIE_ATTRIB) Register Bit-Field Summary

Field NameBitsTypeReset ValueDescription
attr_pm_cap_rsvd_0415rwNormal read/write0x0Reserved bit 20 of the PM Capabilities Register. This is expected to be tied to 0.
attr_pm_cap_pmesupport14:10rwNormal read/write0xFPME Support.
These five bits indicate support for D3cold, D3hot, D2, D1 and D0 respectively.
Transferred to the PM Capabilities register[31:27].
attr_pm_cap_pme_clock 9rwNormal read/write0x0When set indicates that a PCI clock is required for PME generation. This must be set to 0, [per the specification. The value is transferred to the PM Capabilities Register[19].
attr_pm_cap_on 8rwNormal read/write0x1Indicates that the PM structures exists. If this is FALSE, then the PM structure cannot be accessed via either the link or the management port.
attr_pm_cap_nextptr 7:0rwNormal read/write0x48PM Capabilitys Next Capability Offset pointer to the next item in the capabilities list, or 00h if this is the final capability.