[Fpga-synth] Stereo Audio Interface

[Nicholas Gregorich]

Eric Brombaugh wrote:
> I've designed a little I2S stereo audio codec board that will plug into 

Hopefully this isn't too picky but doesn't codec imply ADC and DAC?
It did initially confuse me.

 > Not greedy at all - it's a nice goal to have. Unfortunately, a combined
 > ADC/DAC codec requires at a minimum 5 I/O signals (mclk, sclk, lrclk,
 > di, do) and there are only 4 signals available on the Digilent 6-pin
 > connectors.

Could a small CPLD be used make 5 signals fit on 4 pins? Maybe deriving 
the lrclk from the sclk? I think there are CPLDs in the $1 range.

Unfortunately I don't own a S3E or S3A board so I won't be participating 
in the project.

Nick.