bios.UDEV.create("mcasp0");
bios.UDEV.instance("mcasp0").fxnTableType = "IOM_Fxns";
bios.UDEV.instance("mcasp0").initFxn = prog.extern("mcaspUserInit");
bios.UDEV.instance("mcasp0").params = prog.extern("mcaspParams");
bios.UDEV.instance("mcasp0").fxnTable = prog.extern("Mcasp_IOMFXNS");
bios.UDEV.instance("mcasp0").deviceId = 0;

/*
 *  Add instance of DIO object to use the configured codec. This is the device
 *  SIO streams use.
 */
var dioCodec = bios.DIO.create("Mcasp_in");
dioCodec.deviceName = prog.get("mcasp0");
dioCodec.useCallBackFxn = false;
dioCodec.chanParams = prog.extern("mcasp_chanparam");