Atmel Evaluation Kit for AT32uC3A0512, 32-Bit AVR Microcontroller Atmel ATEVK1105 ATEVK1105 Data Sheet
Product codes
ATEVK1105
610
AT32UC3A
30.8.3.8
USB Host Frame Number Register (UHFNUM)
Offset:
0x0420
Register Name:
UHFNUM
Access Type:
Read/Write
Reset Value:
0x00000000
• FNUM: Frame Number
The value contained in this register is the current SOF number.
This value can be modified by software.
This value can be modified by software.
• FLENHIGH: Frame Length
This register gives the 8 high-order bits of the 14-bits internal frame counter (frame counter at 12 Mhz, counter length is
12000 to ensure a SOF generation every 1 ms).
31
30
29
28
27
26
25
24
–
–
–
–
–
–
–
–
23
22
21
20
19
18
17
16
FLENHIGH
ru
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
–
–
FNUM
rwu
0
0
0
0
0
0
7
6
5
4
3
2
1
0
FNUM
–
–
–
rwu
0
0
0
0
0
32058K
AVR32-01/12