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How to configure AD1974 through SPI

Question asked by Afinko on Mar 3, 2010
Latest reply on Mar 3, 2010 by Afinko



I am using AD1974 on self designed board.

I am trying to configure AD1974 with ADSP-21371 through SPI.

The AD1974 uses 24 bits wide SPI, from datasheet:

The SPI control port of the AD1974 is a 4-wire serial control port. The format is similar to that of the Motorola SPI® format except that the input data-word is 24 bits wide.

However, the SHARC DSPs support only 8, 16, or 32 bit wide SPI.

Is there any way how to configure this CODEC through SHARC SPI interface?


Best regards,