TI_EDMA3CC_DRAE
ti_edma3_cc_wr_4(TI_EDMA3CC_DRAE(0), 0xFFFFFFFF);
reg = ti_edma3_cc_rd_4(TI_EDMA3CC_DRAE(0));
ti_edma3_cc_wr_4(TI_EDMA3CC_DRAE(0), reg);