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

Product codes
AT91SAM9M10-G45-EK
Page of 1361
 815
SAM9M10 [DATASHEET]
6355F–ATARM–12-Mar-13
 
38.6.2
UDPHS  Frame  Number  Register
Name:
 UDPHS_FNUM
Address:
0xFFF78004
Access:
 Read 
• MICRO_FRAME_NUM:  Microframe  Number
Number of the received microframe (0 to 7) in one frame.This field is reset at the beginning of each new frame (1 ms).
One microframe is received each 125 microseconds (1 ms/8).
• FRAME_NUMBER:  Frame  Number  as  defined  in  the  Packet  Field  Formats
).
• FNUM_ERR:  Frame  Number  CRC  Error
This bit is set by hardware when a corrupted Frame Number in Start of Frame packet (or Micro SOF) is received.
This bit and the INT_SOF (or MICRO_SOF) interrupt are updated at the same time.
31
30
29
28
27
26
25
24
FNUM_ERR
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
FRAME_NUMBER
7
6
5
4
3
2
1
0
FRAME_NUMBER
MICRO_FRAME_NUM