SAM3X8E Atmel Corporation, SAM3X8E Datasheet - Page 1132
SAM3X8E
Manufacturer Part Number
SAM3X8E
Description
Manufacturer
Atmel Corporation
- Current page: 1132 of 1465
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39.6.2.9
Name:
Address:
Access:
• FNCERR: Frame Number CRC Error
This bit is set when a corrupted frame number (or micro-frame number) is received. This bit and the SOF (or MSOF) inter-
rupt bit are updated at the same time.
This bit is cleared upon receiving a USB reset.
• FNUM: Frame Number
This field contains the 11-bit frame number information. It is provided in the last received SOF packet.
This field is cleared upon receiving a USB reset.
FNUM is updated even if a corrupted SOF is received.
• MFNUM: Micro Frame Number
This field contains the 3-bit micro frame number information. It is provided in the last received MSOF packet.
This field is cleared at the beginning of each start of frame (SOF interrupt) or upon receiving a USB reset.
MFNUM is updated even if a corrupted MSOF is received.
1132
1132
FNCERR
31
23
15
–
–
7
SAM3X/A
SAM3X/A
Device Frame Number Register
UOTGHS_DEVFNUM
0x400AC020
Read-only
30
22
14
–
–
–
6
FNUM
29
21
13
–
–
5
28
20
12
–
–
4
27
19
11
–
–
3
FNUM
26
18
10
–
–
2
MFNUM
25
17
–
–
9
1
11057A–ATARM–17-Feb-12
11057A–ATARM–17-Feb-12
24
16
–
–
8
0
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