Atmel SAM4S Xplained Pro Starter and Evaluation Kit ATSAM4S-XPRO ATSAM4S-XPRO 데이터 시트
제품 코드
ATSAM4S-XPRO
SAM4S Series [DATASHEET]
Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14
1022
40.7.3 UDP Function Address Register
Name:
UDP_FADDR
Address:
0x40034008
Access:
Read/Write
FADD[6:0]: Function Address Value
The Function Address Value must be programmed by firmware once the device receives a set address request from the
host, and has achieved the status stage of the no-data control sequence. Refer to the Universal Serial Bus Specification,
Rev. 2.0
Rev. 2.0
for more information. After power up or reset, the function address value is set to 0.
FEN: Function Enable
Read:
0: Function endpoint disabled
1: Function endpoint enabled
Write:
0: Disables function endpoint
1: Default value
The Function Enable bit (FEN) allows the microcontroller to enable or disable the function endpoints. The microcontroller
0: Function endpoint disabled
1: Function endpoint enabled
Write:
0: Disables function endpoint
1: Default value
The Function Enable bit (FEN) allows the microcontroller to enable or disable the function endpoints. The microcontroller
sets this bit after receipt of a reset from the host. Once this bit is set, the USB device is able to accept and transfer data
packets from and to the host.
31
30
29
28
27
26
25
24
–
–
–
–
–
–
–
–
23
22
21
20
19
18
17
16
–
–
–
–
–
–
–
–
15
14
13
12
11
10
9
8
–
–
–
–
–
–
–
FEN
7
6
5
4
3
2
1
0
–
FADD