address mapping

[CosmoKramer]

We have two dimms of same capacity.  I know number of bits for row, column, bank and bank group and it is byte addressable. For a burst length of N,  how can I figure out address mapping for this ?

[AdzimZM_Intel]

Hello,

Address ordering [26 bits]

Row 16, Column 10, Bank 2, Bank Group 2. Address Ordering is CS-CID-Row-Bank-Col-BG.

The Avalon bus address width is 27 bits shown as amm_address[26..0] in the IP Block Symbol view or in the RTL top level file port description.

The mapping is :

Row[15..0]              = amm_address[26:11]

Bank[1..0]               = amm_address[10:9]

Col[9..3]                  = amm_address[8:2]

Bank Group[1..0]   = amm_address[1:0]

[AdzimZM_Intel]

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