reduced number of address lines. Our present application fits into 2MB so we
were hoping to use 4MB. Is this possible?
The Blackfin supports 4 external asynchronous banks of 1MByte each. You could
certainly use all 4 memory select lines (AMS0-3) to interface to 4MBytes of
FLASH memory. For instance, the flash interface of the ADSP-BF537 EZ-KIT Lite
contains a 4 MB (2M x 16-bits) ST Micro M29W320DB device. Note that some glue
logic is needed. You can find the EZ-Kit Manual and schematics here: