Atmel Evaluation Kit AT91SAM9G25-EK AT91SAM9G25-EK データシート

574

SAM9G25 [DATASHEET]

11032D–ATARM–10-Mar-2014

Name: UDPHS_TST

0xF803C0E0

Read-write 

Speed Configuration:

0 = No effect.

1 = Set to send the J state on the UDPHS line. This enables the testing of the high output drive level on the D+ line.

0 = No effect.

1 = Set to send the K state on the UDPHS line. This enables the testing of the high output drive level on the D- line.

0 = No effect.

1 = Set to repetitively transmit the packet stored in the current bank. This enables the testing of rise and fall times, eye patterns, 
jitter, and any other dynamic waveform specifications.

0 = No effect.

1 = Set to force the OpMode signal (UTMI interface) to “10”, to disable the bit-stuffing and the NRZI encoding.

Note:

For the Test mode, Test_SE0_NAK (see Universal Serial Bus Specification, Revision 2.0: 7.1.20, Test Mode Support). 
Force the device in High Speed mode, and configure a bulk-type endpoint. Do not fill this endpoint for sending NAK

 

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

–

–

–

–

–

–

–

–

7

6

5

4

3

2

1

0

–

–

OPMODE2

TST_PKT

TST_K

TST_J

SPEED_CFG

0

NORMAL

Normal Mode: The macro is in Full Speed mode, ready to make a High Speed identification, if the host 
supports it and then to automatically switch to High Speed mode

1

Reserved

2

HIGH_SPEED

Force High Speed: Set this value to force the hardware to work in High Speed mode. Only for debug 
or test purpose.

3

FULL_SPEED

Force Full Speed: Set this value to force the hardware to work only in Full Speed mode. In this 
configuration, the macro will not respond to a High Speed reset handshake.