SAM3S8B Atmel Corporation, SAM3S8B Datasheet - Page 974

• Manufacturer Part Number: SAM3S8B
• Manufacturer: Atmel Corporation

36.7.3
Name:
Address:
Access:
• 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.
974
974
31
23
15
–
–
–
7
–
SAM3S8/SD8
SAM3S8/SD8
UDP Function Address Register
30
22
14
UDP_FADDR
0x40034008
Read-write
–
–
–
6
29
21
13
–
–
–
5
28
20
12
–
–
–
4
FADD
27
19
11
–
–
–
3
26
18
10
–
–
–
2
25
17
–
–
9
–
1
11090A–ATARM–10-Feb-12
11090A–ATARM–10-Feb-12
FEN
24
16
–
–
8
0