Atmel ARM-Based Evaluation Kit AT91SAM9N12-EK AT91SAM9N12-EK Data Sheet

536

SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]

11063K–ATARM–05-Nov-13

UDP_GLB_STAT

0xF803C004

Read-write 

This register is used to get and set the device state as specified in Chapter 9 of the USB Serial Bus Specification, Rev.2.0.

Read:

0 = Device is not in address state.

1 = Device is in address state.

Write:

0 = No effect, only a reset can bring back a device to the default state. 

1 = Sets device in address state. This occurs after a successful Set Address request. Beforehand, the UDP_FADDR register must 
have been initialized with Set Address parameters. Set Address must complete the Status Stage before setting FADDEN. Refer 
to chapter 9 of the Universal Serial Bus Specification, Rev. 2.0 for more details.

Read:

0 = Device is not in configured state.

1 = Device is in configured state.

Write:

0 = Sets device in a non configured state

1 = Sets device in configured state.

The device is set in configured state when it is in address state and receives a successful Set Configuration request. Refer to 
Chapter 9 of the Universal Serial Bus Specification, Rev. 2.0 for more details.

31

30

29

28

27

26

25

24

–

–

–

–

–

–

–

–

23

22

21

20

19

18

17

16

–

–

–

–

–

–

–

–

15

14

13

12

11

10

9

8

–

–

–

–

–

–

–

–

7

6

5

4

3

2

1

0

–

–

–

RMWUPE

RSMINPR

ESR

CONFG

FADDEN