Atmel Xplained Evaluation Board AT32UC3A3-XPLD AT32UC3A3-XPLD Data Sheet
Product codes
AT32UC3A3-XPLD
350
32072H–AVR32–10/2012
AT32UC3A3
19.12.1
Channel x Source Address Register
Name:
SARx
Access Type:
Read/Write
Offset:
0x000 + [x * 0x58]
Reset Value:
0x00000000
• SADD: Source Address of DMA transfer
The starting System Bus source address is programmed by software before the DMA channel is enabled or by a LLI update
before the start of the DMA transfer. As the DMA transfer is in progress, this register is updated to reflect the source
address of the current System Bus transfer.
before the start of the DMA transfer. As the DMA transfer is in progress, this register is updated to reflect the source
address of the current System Bus transfer.
Updated after each source System Bus transfer. The SINC field in the CTLx register determines whether the address incre-
ments, decrements, or is left unchanged on every source System Bus transfer throughout the block transfer.
ments, decrements, or is left unchanged on every source System Bus transfer throughout the block transfer.
31
30
29
28
27
26
25
24
SADD[31:24]
23
22
21
20
19
18
17
16
SADD[23:16]
15
14
13
12
11
10
9
8
SADD[15:8]
7
6
5
4
3
2
1
0
SADD[7:0]