Atmel SAM4L Xplained Pro Evaluation Kit Atmel ATSAM4L-XPRO ATSAM4L-XPRO Data Sheet

42023E–SAM–07/2013

MCFG0...MCFG15

Read/Write

0x00 - 0x3C

0x00000002

•

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

Undefined Length Burst Type

000

Inifinite Length Burst

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

001

Single-Access

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

010

4 Beat Burst

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

011

8 Beat Burst

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

100

16 Beat Burst

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