Atmel Evaluation Kit for AT32uC3A0512, 32-Bit AVR Microcontroller Atmel ATEVK1105 ATEVK1105 데이터 시트
제품 코드
ATEVK1105
591
AT32UC3A
30.8.2.17
USB Device DMA Channel X Next Descriptor Address Register (UDDMAX_NEXTDESC)
Offset:
0x0310 + (X - 1) . 0x10
Register Name:
UDDMAX_NEXTDESC
, X in [1..6]
Access Type:
Read/Write
Reset Value:
0x00000000
• NXT_DESC_ADDR: Next Descriptor Address
This field contains the bits 31:4 of the 16-byte aligned address of the next channel descriptor to be processed.
Note that this field is written either by software or by descriptor loading.
Note that this field is written either by software or by descriptor loading.
31
30
29
28
27
26
25
24
NXT_DESC_ADDR
rwu
0
0
0
0
0
0
0
0
23
22
21
20
19
18
17
16
NXT_DESC_ADDR
rwu
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
NXT_DESC_ADDR
rwu
0
0
0
0
0
0
0
0
7
6
5
4
3
2
1
0
NXT_DESC_ADDR
–
–
–
–
rwu
0
0
0
0
32058K
AVR32-01/12