AU_REG_CODECST
i=au_rd(au, 0, AU_REG_CODECST, 4);
au_wr(au, 0, AU_REG_CODECST, 0x8068, 4);
au_wr(au, 0, AU_REG_CODECST, 0x00e8, 4);
au_wr(au, 0, AU_REG_CODECST, 0x00a8, 4);
au_wr(au, 0, AU_REG_CODECST, 0x80a8, 4);
au_wr(au, 0, AU_REG_CODECST, 0x80e8, 4);
au_wr(au, 0, AU_REG_CODECST, 0x80a8, 4);
au_wr(au, 0, AU_REG_CODECST, 0x00a8, 4);
au_wr(au, 0, AU_REG_CODECST, 0x00e8, 4);
au_wr(au, 0, AU_REG_CODECST, 0xe8, 4);
i=au_rd(au, 0, AU_REG_CODECST, 4);