Atmel ARM-Based Evaluation Kit for SAM4S16C, 32-Bit ARM® Cortex® Microcontroller ATSAM4S-WPIR-RD ATSAM4S-WPIR-RD Data Sheet

SAM4S Series [DATASHEET]

Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14

1022

UDP_FADDR

0x40034008

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