PFx_SRIOV_BAR3_APERTURE_SIZE_4 (CPM5_PCIE_ATTR) Register - AM012

Versal Adaptive SoC Register Reference (AM012)

Document ID
AM012
Release Date
2024-08-19
Revision
1.4

PFx_SRIOV_BAR3_APERTURE_SIZE_4 (CPM5_PCIE_ATTR) Register Description

Register NamePFx_SRIOV_BAR3_APERTURE_SIZE_4
Offset Address0x000000191C
Absolute Address 0x00FCE0991C (CPM5_PCIE0_ATTR)
0x00FCE8991C (CPM5_PCIE1_ATTR)
Width32
TyperwNormal read/write
Reset Value0x00000000
DescriptionVF BAR3 Aperture: Specifies the aperture of
BAR 3 when it is configured as a 32-bit BAR.
The valid encodings are:
000000-000101 = 4 Kbytes
00110 = 8 Kbytes
00111 = 16 Kbytes
01000 = 32 Kbytes
01001 = 64 Kbytes
01010 = 128 Kbytes
01011 = 256 Kbytes
01100 = 512 Kbytes
01101 = 1 Mbytes
01110 = 2 Mbytes
01111 = 4 Mbytes
10000 = 8 Mbytes
10001 = 16 Mbytes
10010 = 32 Mbytes
10011 = 64 Mbytes
10100 = 128 Mbytes
10101 =
256 Mbytes
10110 = 512 Mbytes
10111 = 1 Gbytes
11000 = 2 Gbytes

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

PFx_SRIOV_BAR3_APERTURE_SIZE_4 (CPM5_PCIE_ATTR) Register Bit-Field Summary

Field NameBitsTypeReset ValueDescription
attr 4:0rwNormal read/write0x0