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Altera_Forum
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17 years ago

DDR2: chip bits definition in local_addr[]

Can someone tell me what the definition of "chip bits" is for the local_addr field for the DDR2 SDRAM controller? The DDR and DDR2 SDRAM High-Performance Controller User Guide says for multipl...
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Altera_Forum
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17 years ago

Thanks FvM for the reply. I tried following your logic and running the Altera Megawizard Function for DDR2 High-Performance Controller. I am using a Micron MT16HTF25666H DDR2 SDRAM SODIMM that has 2 chip select bits (module rank), 10 column bits, 14 row bits, and 3 bank bits. Following the above equation, I should have 28 bits. However the Megawizard only gives me 27 bits.