Atmel Evaluation Kit AT91SAM9M10-G45-EK AT91SAM9M10-G45-EK Data Sheet

 838

SAM9M10 [DATASHEET]

6355F–ATARM–12-Mar-13

   UDPHS_EPTSETSTAx 

[x=0..6]

0xFFF78114 [0], 0xFFF78134 [1], 0xFFF78154 [2], 0xFFF78174 [3], 0xFFF78194 [4], 
0xFFF781B4 [5], 0xFFF781D4 [6]

 Write-only 

0 = no effect.

1 = set this bit to request a STALL answer to the host for the next handshake

Refer to chapters 8.4.5 (Handshake Packets) and 9.4.5 (Get Status) of the 

 for

more information on the STALL handshake.

0 = no effect.

1 = kill the last written bank.

0 = no effect.

1 = set this bit after a packet has been written into the endpoint FIFO for IN data transfers

– This flag is used to generate a Data IN transaction (device to host). 

– Device firmware checks that it can write a data payload in the FIFO, checking that TX_PK_RDY is cleared.

– Transfer to the FIFO is done by writing in the “Buffer Address” register.

– Once the data payload has been transferred to the FIFO, the firmware notifies the UDPHS device setting 

TX_PK_RDY to one.

– UDPHS bus transactions can start.

– TXCOMP is set once the data payload has been received by the host.

– Data should be written into the endpoint FIFO only after this bit has been cleared.

– Set this bit without writing data to the endpoint FIFO to send a Zero Length Packet.

31

30

29

28

27

26

25

24

–

–

–

–

–

–

–

–

23

22

21

20

19

18

17

16

–

–

–

–

–

–

–

–

15

14

13

12

11

10

9

8

–

–

–

–

TX_PK_RDY

–

KILL_BANK

–

7

6

5

4

3

2

1

0

–

–

FRCESTALL

–

–

–

–

–