Datasheet

SAM9G20
DS60001516A-page 122  2017 Microchip Technology Inc.
18.5.1 Bus Matrix Master Configuration Registers
Name:MATRIX_MCFG0...MATRIX_MCFG5
Access:Read/Write
(MATRIX_MCFG5 is Write-only)
ULBT: Undefined Length Burst Type
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 rearbitration at each beat of the INCR burst.
2: Four Beat Burst
The undefined length burst is split into 4-beat bursts allowing rearbitration at each 4-beat burst end.
3: Eight Beat Burst
The undefined length burst is split into 8-beat bursts allowing rearbitration at each 8-beat burst end.
4: Sixteen Beat Burst
The undefined length burst is split into 16-beat bursts allowing rearbitration at each 16-beat burst end.
31 30 29 28 27 26 25 24
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23 22 21 20 19 18 17 16
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15 14 13 12 11 10 9 8
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76543210
––––– ULBT