SAM-G53N_14 Datasheet, PDF (396/949 Pages) ATMEL Corporation – Atmel | SMART ARM-based Flash MCU

21.9.1 Bus Matrix Master Configuration Registers
Name:
MATRIX_MCFGx [x = 0..2]
Address: 0x400E0200
Access: Read/Write
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
This register can only be written if the WPEN bit is cleared in the Bus Matrix Write Protection Mode Register.
• ULBT: Undefined Length Burst Type
Value
0
1
2
3
4
Name
INFINITE
SINGLE
FOUR_BEAT
EIGHT_BEAT
SIXTEEN_BEAT
Description
No predicted end of burst is generated and therefore INCR bursts coming from
this master cannot be broken.
The undefined length burst is treated as a succession of single access allowing
rearbitration at each beat of the INCR burst.
The undefined length burst is split into a 4-beat bursts allowing rearbitration at
each 4-beat burst end.
The undefined length burst is split into 8-beat bursts allowing rearbitration at each
8-beat burst end.
The undefined length burst is split into 16-beat bursts allowing rearbitration at
each 16-beat burst end.
396
SAM G53G / SAM G53N [DATASHEET]
Atmel-11240E-ATARM-SAM-G53G-SAM-G53N-Datasheet_17-Oct-14