DU0_DR1_MARK
DU0_DR1_MARK, TX5_C_MARK, SDA2_D_MARK, A1_MARK,
SSI_WS4_MARK, DU0_DR1_MARK, LCDOUT1_MARK, AUDATA3_MARK,
GPS_CLK_B_MARK, AUDATA0_MARK, TX5_C_MARK, DU0_DR1_MARK,
DU0_DR1_MARK, LCDOUT17_MARK, SCIF5_TXD_C_MARK, I2C2_SDA_D_MARK,
DU0_DR1_MARK, SCK0_B_MARK, HTX0_D_MARK, IERX_A_MARK,