SAM3SD8B Atmel Corporation, SAM3SD8B Datasheet - Page 972

• Manufacturer Part Number: SAM3SD8B
• Manufacturer: Atmel Corporation

36.7.1
Name:
Address:
Access:
• FRM_NUM[10:0]: Frame Number as Defined in the Packet Field Formats
This 11-bit value is incremented by the host on a per frame basis. This value is updated at each start of frame.
Value Updated at the SOF_EOP (Start of Frame End of Packet).
• FRM_ERR: Frame Error
This bit is set at SOF_EOP when the SOF packet is received containing an error.
This bit is reset upon receipt of SOF_PID.
• FRM_OK: Frame OK
This bit is set at SOF_EOP when the SOF packet is received without any error.
This bit is reset upon receipt of SOF_PID (Packet Identification).
In the Interrupt Status Register, the SOF interrupt is updated upon receiving SOF_PID. This bit is set without waiting for
EOP.
Note:
972
972
31
23
15
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–
–
7
In the 8-bit Register Interface, FRM_OK is bit 4 of FRM_NUM_H and FRM_ERR is bit 3 of FRM_NUM_L.
SAM3S8/SD8
SAM3S8/SD8
UDP Frame Number Register
30
22
14
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UDP_FRM_NUM
0x40034000
Read-only
–
–
6
29
21
13
---
–
–
5
28
20
12
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–
–
4
FRM_NUM
27
19
11
---
–
–
3
26
18
10
---
–
2
FRM_NUM
FRM_OK
25
17
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9
1
11090A–ATARM–10-Feb-12
11090A–ATARM–10-Feb-12
FRM_ERR
24
16
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8
0