ADV_SWT_DSPn_BAR1_APERTURE_SIZE_21 (CPM5_PCIE_ATTR) Register

Versal Adaptive SoC Register Reference (AM012)

Document ID
AM012
Release Date
2023-08-29
Revision
1.3

ADV_SWT_DSPn_BAR1_APERTURE_SIZE_21 (CPM5_PCIE_ATTR) Register Description

Register NameADV_SWT_DSPn_BAR1_APERTURE_SIZE_21
Relative Address0x00000028D4
Absolute Address 0x00FCE0A8D4 (CPM5_PCIE0_ATTR)
0x00FCE8A8D4 (CPM5_PCIE1_ATTR)
Width32
TyperwNormal read/write
Reset Value0x00000000
DescriptionBAR1 DSP Aperture: Specifies the aperture of
BAR 1.
For Endpoint Mode the valid encodings are:
00000 = 128bytes
00001 = 256bytes
00010 = 512bytes
00011 = 1 Kbytes
00100 = 2 Kbytes
00101 = 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
For Root Port Mode (PF0 only), the valid encodings are:
00000 = 4 bytes
00001 = 8 bytes
00010 = 16 bytes
00011 = 32 bytes
00100 = 84 bytes
00101 = 128 bytes
00110 = 256 bytes
00111 = 512 bytes
01000 = 1 Kbytes
01001 = 2 Kbytes
01010 = 4 Kbytes
01011 = 8 Kbytes
01100 = 16 Kbytes
01101 = 32 Kbytes
01110 = 64 Kbytes
01111 = 128 Kbytes
10000 = 256 Kbytes
10001 = 512 Kbytes
10010 = 1 Mbytes
10011 = 2 Mbytes
10100 = 4 Mbytes
10101 = 8 Mbytes
10110 = 16 Mbytes
10111 = 32 Mbytes
11000 = 64 Mbytes
11001 = 128 Mbytes
11010 = 256 Mbytes
11011 = 512 Mbytes
11100 = 1 Gbytes
11101 = 2 Gbytes

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

ADV_SWT_DSPn_BAR1_APERTURE_SIZE_21 (CPM5_PCIE_ATTR) Register Bit-Field Summary

Field NameBitsTypeReset ValueDescription
attr 4:0rwNormal read/write0x0BAR1 DSP Aperture: Specifies the aperture of
BAR 1.
For Endpoint Mode the valid encodings are:
00000 = 128bytes
00001 = 256bytes
00010 = 512bytes
00011 = 1 Kbytes
00100 = 2 Kbytes
00101 = 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
For Root Port Mode (PF0 only), the valid encodings are:
00000 = 4 bytes
00001 = 8 bytes
00010 = 16 bytes
00011 = 32 bytes
00100 = 84 bytes
00101 = 128 bytes
00110 = 256 bytes
00111 = 512 bytes
01000 = 1 Kbytes
01001 = 2 Kbytes
01010 = 4 Kbytes
01011 = 8 Kbytes
01100 = 16 Kbytes
01101 = 32 Kbytes
01110 = 64 Kbytes
01111 = 128 Kbytes
10000 = 256 Kbytes
10001 = 512 Kbytes
10010 = 1 Mbytes
10011 = 2 Mbytes
10100 = 4 Mbytes
10101 = 8 Mbytes
10110 = 16 Mbytes
10111 = 32 Mbytes
11000 = 64 Mbytes
11001 = 128 Mbytes
11010 = 256 Mbytes
11011 = 512 Mbytes
11100 = 1 Gbytes
11101 = 2 Gbytes