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LPC43xx I2S interface with 24bit DAC and ADC

Question asked by Jonathan Smith on Mar 29, 2018
Latest reply on Apr 2, 2018 by jeremyzhou


I am upgrading an existing design to use a LPC43xx processor. The board has a 24bit DAC and a 24bit ADC with I2S interfaces. I was planning to use the I2S interface on the NXP chip, but after re-reading the manual I see that the interface is only capable of handling 8, 16 or 32 bit word sizes.

 

Any ideas on a solution for interfacing with 24 bit I2S devices?

 

Many thanks.

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