DMA4_CCR_FRAME_SYNC
ccr |= DMA4_CCR_FRAME_SYNC(1);
ccr &= ~DMA4_CCR_FRAME_SYNC(1);
| DMA4_CCR_FRAME_SYNC(0)
#define DMA4_CCR_PACKET_TRANS (DMA4_CCR_FRAME_SYNC(1) | \