Atmel Xplained Evaluation Board AT32UC3A3-XPLD AT32UC3A3-XPLD Data Sheet

32072H–AVR32–10/2012

MCFG0...MCFG15

Read/Write

0x00 - 0x3C

0x00000002

•

0: Infinite Length Burst

No predicted end of burst is generated and therefore INCR bursts coming from this master cannot be broken.

1: Single Access

The undefined length burst is treated as a succession of single accesses, allowing re-arbitration at each beat of the INCR burst.

2: Four Beat Burst 

The undefined length burst is split into a four-beat burst, allowing re-arbitration at each four-beat burst end.

3: Eight Beat Burst 

The undefined length burst is split into an eight-beat burst, allowing re-arbitration at each eight-beat burst end.

4: Sixteen Beat Burst 

The undefined length burst is split into a sixteen-beat burst, allowing re-arbitration at each sixteen-beat burst end.

31

30

29

28

27

26

25

24

–

–

–

–

–

–

–

–

23

22

21

20

19

18

17

16

–

–

–

–

–

–

–

–

15

14

13

12

11

10

9

8

–

–

–

–

–

–

–

–

7

6

5

4

3

2

1

0

–

–

–

–

–

ULBT