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Altera_Forum
Honored Contributor
18 years agoaltmemphy with 2 ram chips
hello all, Now I'm trying to implement one controller using Altmemphy to interface with two 8-bit DDR2 SDRAM chips on Stratix3.But when I share the address and control signals to both of these dev...
Altera_Forum
Honored Contributor
18 years agoTo my opinion the configuration is identical to a one 16-Bit DDR2-Ram configuration with separate upper and lower DQS and DM pins, as e. g. used with the Cyclone III starter board. In altmemphy configuration, it can be generated by selecting the 8-Bit-Ram preset and setting DQ width to 16 Bit. You can use either one common or two separate clocks, all other pins except for DQx, DQSx and DMx have to be shared by both devices.