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ADSP21489 with external ADC/DAC

Question asked by MarcZ on Apr 9, 2013
Latest reply on Apr 30, 2013 by jeyanthi.jegadeesan



I recently changed my board from Texas Instruments to Analog Devices. I would like to see the possibilities with this ADSP21489 EZ-Kit board.

I would like to interface the board with external ADC/DAC.

In my previous board from Texas Instruments, I use something called External Peripheral Interface wich is a high-speed parallel bus for extarnal devices or memory.


I took a look to the datasheet of the ADSP21489 and I would like some advices to do what I mentioned above.

Do you think using AMI (Asynchronous Memory Interface) could be an idea for this?

Could I get the data from A/D and sent the data to D/A faster by SPI? (knowing that I have a Serial Control on my ADC board)

Does the SPI allow us to effectively "overlap computation" with the communication?

Ideally, I would like 2 chip select to control both ADC and DAC.


Please let me know what you think about it.


Thank you,