AXI Streaming Intel® FPGA IP for PCI Express* User Guide

ID 790711
Date 2/12/2024
Public

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6.3.4. BAR Number Format

The BAR Number indicates matching BAR for MMIO transaction coming from HOST side.

Table 33.  BAR Number Field Description
BAR Number Description
0000 BAR 0 (when configured as 32-bit BAR), or BAR 0-1 (when configured as 64-bit BAR)
0001 BAR 1 (when configured as 32-bit BAR); reserved when BAR 1 is combined with BAR 0 to form a 64-bit BAR
0010 BAR 2 (when configured as 32-bit BAR), or BAR 2-3 (when configured as 64-bit BAR)
0011 BAR 3 (when configured as 32-bit BAR); reserved when BAR 2 is combined with BAR 3 to form a 64-bit BAR
0100 BAR 4 (when configured as 32-bit BAR), or BAR 4-5 (when configured as 64-bit BAR)
0101 BAR 5 (when configured as 32-bit BAR); reserved when BAR 4 is combined with BAR 5 to form a 64-bit BAR
0111 Expansion ROM BAR
All others Reserved