This is USB I2S converter on PIX32MX.

I2S connection

MCLK - RA4(PPS)
LRCLK - RB4(PPS)
SDATA - RA1(PPS)
BCLK - RB14

LED configuration

RB15 - LED1

Swtich configuration

RB5 - AUDMOD bit 0 (Invert)
RB7 - AUDMOD bit 1 (Invert)

AUDMOD

11 = PCM/DSP mode
10 = Right-Justified mode
01 = Left-Justified mode
00 = I2S mode

Currently I2S support 48KHz,32KHz 16bit.

Test on Mac OS X 10.4 and 10.5 by AK4382, FN1242, PCM5201.