Address Mapping

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The AXI interface address is mapped based on the type of the Address Ordering selected during the DDR Configuration. The address ordering can be selected using the Standalone MSS Configurator -> DDR Memory -> Controller Options tab. For example, if Chip-Row-Bank-Col is selected, and if a row address width and column address width is configured for 13 and 11, the AXI address is mapped as shown in the following table.

Table 1. AXI Address Mapping
AXI Address 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Column Address                                       C10 C9 C8 C7 C6 C5 C4 C3 C2 C1 C0    
Bank Address                                 BA2 BA1 BA0                          
Row Address       R12 R11 R10 R9 R8 R7 R6 R5 R4 R3 R2 R1 R0