at91cap7e ATMEL Corporation, at91cap7e Datasheet - Page 450

• Manufacturer Part Number: at91cap7e
• Description: Customizable Microcontroller
• Manufacturer: ATMEL Corporation

31.6.3
Register Name:
Access Type:
• 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 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
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.
450
31
23
15
–
–
–
7
–
AT91CAP7E
UDP Function Address Register
30
22
14
–
–
–
6
29
21
13
–
–
–
5
UDP_ FADDR
Read/Write
28
20
12
–
–
–
4
FADD
27
19
11
–
–
–
3
26
18
10
–
–
–
2
25
17
–
–
9
–
1
8549A–CAP–10/08
FEN
24
16
–
–
8
0