AWIN_DMA_IRQ_PEND_STA_REG
DMA_WRITE(sc, AWIN_DMA_IRQ_PEND_STA_REG, ~0);
sta = DMA_READ(sc, AWIN_DMA_IRQ_PEND_STA_REG);
DMA_WRITE(sc, AWIN_DMA_IRQ_PEND_STA_REG, sta);
DMA_WRITE(sc, AWIN_DMA_IRQ_PEND_STA_REG, sta);