Changes between Version 5 and Version 6 of Component/Vci Multi Dma
- Timestamp:
- Dec 10, 2011, 5:23:52 PM (13 years ago)
Legend:
- Unmodified
- Added
- Removed
- Modified
-
Component/Vci Multi Dma
v5 v6 23 23 24 24 Each channel has its own set of memory mapped registers, and for each 25 channel a specific IRQ can be isoptionally asserted when transfer is completed.25 channel a specific IRQ can be optionally asserted when transfer is completed. 26 26 27 27 Each channel k has 5 memory-mapped registers : … … 34 34 35 35 * '''DMA_LEN[k]''' (Read / Write) 36 It defines the length of transfer, in bytes. This register must be written after writing into 37 registers DMA_SRC & DMA_DST, as the writing into the DMA_LEN register starts the transfer. 36 Writing in this register defines the length of transfer (in bytes), and starts the transfer. 38 37 This register gets back to 0 when transfer is finished. 39 38 This register can be used to test the DMA coprocessor status.