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booting adsp21364

Started by cee4max August 31, 2007
Hi

We are using adsp 21364 for audio processing application.I want to
know is there any advantage for SPI booting over parallel port booting
On Fri, 31 Aug 2007, cee4max wrote:

> Hi
>
> We are using adsp 21364 for audio processing application.I want to
> know is there any advantage for SPI booting over parallel port booting

SPI flash takes less board space than parallel port flash. So it can
reduce overall cost and size of a project. But it's slower since you only
get 1 bit at a time versus 8, so it takes longer to wake up. Depends on
what is more important for your application.

Patience, persistence, truth,
Dr. mike
cee4max wrote:
> Hi
>
> We are using adsp 21364 for audio processing application.I want to
> know is there any advantage for SPI booting over parallel port booting
>
Absolutely!

SPI serial flash uses a small 8 pin part. Parallel flash uses a 32 pin
part. Do you really want to route all those signals to a much bigger
part for no real benefit?

Al Clark
Danville Signal Processing, Inc.