SAM4L Datasheet, PDF (305/1185 Pages) ATMEL Corporation – ATSAM ARM-based Flash MCU

ATSAM4L4/L2
15.5.1 Master Configuration Registers
Name:
MCFG0...MCFG15
Access Type:
Read/Write
Offset:
0x00 - 0x3C
Reset Value:
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
• ULBT: Undefined Length Burst Type
Table 15-2. Undefined Length Burst Type
ULBT Undefined Length Burst Type Description
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.
42023C–SAM–02/2013
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