Atmel Xplained Pro Evaluation Kit for the ATSAMD21J18A Microcontroller ATSAMD21-XPRO ATSAMD21-XPRO Data Sheet
Product codes
ATSAMD21-XPRO
763
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181C–SAM-D21_Datasheet–07/2014
31.8.1.3 QOS Control
Name:
QOSCTRL
Offset:
0x03
Reset:
0x00
Property:
Write-Protected
z
Bits 7:4 – Reserved
These bits are unused and reserved for future use. For compatibility with future devices, always write these bits to
zero when this register is written. These bits will always return zero when read.
These bits are unused and reserved for future use. For compatibility with future devices, always write these bits to
zero when this register is written. These bits will always return zero when read.
z
Bits 3:2 –DQOS[1:0]: Data Quality of Service
These bits define the memory priority access during the endpoint or pipe read/write data operation.Refer to
These bits define the memory priority access during the endpoint or pipe read/write data operation.Refer to
z
Bits 1:0 – CQOS[1:0]: Configuration Quality of Service
These bits define the memory priority access during the endpoint or pipe read/write configuration operation.Refer
to
These bits define the memory priority access during the endpoint or pipe read/write configuration operation.Refer
to
.
Bit
7
6
5
4
3
2
1
0
DQOS[1:0]
CQOS[1:0]
Access
R
R
R
R
R/W
R/W
R/W
R/W
Reset
0
0
0
0
0
1
0
1