BBB audio schematic

24.576 MHz osc:
  clk out -------------.
  enable  <----.       |
               |       |
               |       |
AM3358:        |       |
  gpio 1.27 ---'       |
  mcasp 0 tx hclk <----+----> P9.25
  mcasp 0 tx clk  ---+------> P9.31
  mcasp 0 tx fs   ---|-+----> P9.29
  mcasp 0 data 2  ---|-|-+--> P9.28
                     | | |
                     | | |
HDMI framer:         | | |
  aclk <-------------' | |
  ap0  <---------------' |
  ap1  <-----------------'