CHAPTER 15: SD Card Interface
888 FM4 Peripheral Manual, Doc. No. 002-04856 Rev. *E
Example 4)
If SINEN is 1 and INCRSEL[2:0] are 0b111, if the address in the AHB fixed length burst is on one of the
boundaries, the DMA controller uses one of INCR4, INCR8 and INCR16.
If the AHB fixed length burst boundaries of INCR4, INCR8 and INCR16 are the same, depending on the
transfer size, the DMA controller automatically chooses a burst type according to the following priority
order from top to bottom: INCR16, INCR8, INCR4, and executes a DMA transfer.
If the AHB fixed length burst boundary does not fall on any of the boundaries shown above, the DMA
controller uses SINGLE (single transfer) to execute a DMA transfer.
To Next Page
Loading...
