DM642 32-bit access to SDRAM other 32-bits not used
Started by ●August 27, 2007
Just wondering about a design I recently saw which had a DM642 interfaced to
SDRAM using a 32-bit wide data bus. The SDRAM chip only has a 32-bit wide bus
and the other 32 bits of the DM642 are not used. Not sure why it was designed
this way as it only going to slow down the EMIF that much more. Can this design
work? Is this going to be problem? Any special commands required on the DM642
to support this configuration? TIA