Atmel Xplained Pro Evaluation Kit ATSAM4E-XPRO ATSAM4E-XPRO Data Sheet

Product codes
ATSAM4E-XPRO
Page of 1506
SAM4E [DATASHEET]
Atmel-11157D-ATARM-SAM4E16-SAM4E8-Datasheet_12-Jun-14
460
25.12.3 Bus Matrix Priority Registers A For Slaves
Name:
MATRIX_PRASx [x=0..5]
Address:
0x400E0280 [0], 0x400E0288 [1], 0x400E0290 [2], 0x400E0298 [3], 0x400E02A0 [4], 0x400E02A8 [5]
Access:
Read-write 
This register can only be written if the WPE bit is cleared in th
MxPR: Master x Priority
Fixed priority of Master x for accessing the selected slave. The higher the number, the higher the priority.
All the masters programmed with the same MxPR value for the slave make up a priority pool.
Round-robin arbitration is used in the lowest (MxPR = 0) and highest (MxPR = 3) priority pools.
Fixed priority is used in intermediate priority pools (MxPR = 1) and (MxPR = 2).
See 
 for details.
31
30
29
28
27
26
25
24
M6PR
23
22
21
20
19
18
17
16
M5PR
M4PR
15
14
13
12
11
10
9
8
M3PR
M2PR
7
6
5
4
3
2
1
0
M1PR
M0PR