Atmel Xplained Evaluation Board AT32UC3A3-XPLD AT32UC3A3-XPLD Data Sheet
Product codes
AT32UC3A3-XPLD
345
32072H–AVR32–10/2012
AT32UC3A3
. The DMACA then knows that the previous block trans-
ferred was the last block in the DMA transfer.
The DMACA transfer might look like that shown in
Note that the des-
tination address is decrementing.
Figure 19-17. DMA Transfer with Linked List Source Address and Contiguous Destination
Address
The DMA transfer flow is shown in
Figure 19-18.
SAR(2)
SAR(1)
SAR(0)
DAR(2)
DAR(1)
DAR(0)
Block 2
Block 1
Block 0
Block 0
Block 1
Block 2
Address of
Source Layer
Address of
Destination Layer
Source Blocks
Destination Blocks