Atmel Xplained Pro Evaluation Kit ATSAM4E-XPRO ATSAM4E-XPRO データシート

1169

SAM4E [DATASHEET]

Atmel-11157D-ATARM-SAM4E16-SAM4E8-Datasheet_12-Jun-14

UDP_FADDR

0x40084008

Read/Write 



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 for more information. After power up or reset, the function address value is set to 0.



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 
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