Hi,

I am working on tms320c5509a. In BGA package it is having 21 address lines with 4 CE for
external/internal memory.

Thus if I interface the external memory to the processor I will interface address lines and one
of the CE to it.

In the datasheet of tms320c5509a, page-35 the memory map is given. There it is mentioned the
address space from 000000 to FFFFFF, which needs the address  line 24 bit wide while processor
is having 21 address lines.
So how to give the address with only 21 bit address line?

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