Zynq UltraScale+ Devices Register Reference > Module Summary > PCIE_ATTRIB Module > ATTR_63 (PCIE_ATTRIB) Register

ATTR_63 (PCIE_ATTRIB) Register

ATTR_63 (PCIE_ATTRIB) Register Description

Register NameATTR_63
Relative Address0x00000000FC
Absolute Address 0x00FD4800FC (PCIE_ATTRIB)
Width32
TyperwNormal read/write
Reset Value0x00000001
DescriptionATTR_63

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

ATTR_63 (PCIE_ATTRIB) Register Bit-Field Summary

Field NameBitsTypeReset ValueDescription
attr_rbar_num 6:4rwNormal read/write0x0The number of
Resizable BARs in the cap structure. The value is transferred to the Resizable BAR Control Register(0) [7:5].
attr_rbar_cap_version 3:0rwNormal read/write0x1The version of Resizable BAR Capability followed. The value is transferred to the Resizable BAR Capabilities Register[19:16].