Atmel Xplained Pro Evaluation Kit for the ATSAMD21J18A Microcontroller ATSAMD21-XPRO ATSAMD21-XPRO Data Sheet
Product codes
ATSAMD21-XPRO
765
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181C–SAM-D21_Datasheet–07/2014
31.8.1.5 Descriptor Address
Name:
DESCADD
Offset:
0x24
Reset:
0x00000000
Property:
Write-Protected
z
Bits 31:0 – DESCADD[31:0]: Descriptor Address Value
These bits define the base address of the main USB descriptor in RAM. The two least significant bits must be writ-
ten to zero.
These bits define the base address of the main USB descriptor in RAM. The two least significant bits must be writ-
ten to zero.
Bit
31
30
29
28
27
26
25
24
+3
DESCADD[31:24]
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset
0
0
0
0
0
0
0
0
Bit
23
22
21
20
19
18
17
16
+2
DESCADD[23:16]
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset
0
0
0
0
0
0
0
0
Bit
15
14
13
12
11
10
9
8
+1
DESCADD[15:8]
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset
0
0
0
0
0
0
0
0
Bit
7
6
5
4
3
2
1
0
+0
DESCADD[7:0]
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset
0
0
0
0
0
0
0
0