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DOC7707 데이터시트(PDF) 212 Page - List of Unclassifed Manufacturers

부품명 DOC7707
상세설명  Microcontroller with 8/16K Bytes of ISP Flash and USB Controller
PDF  307 Pages
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제조업체  ETC1 [List of Unclassifed Manufacturers]
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DOC7707 데이터시트(HTML) 212 Page - List of Unclassifed Manufacturers

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212
7707F–AVR–11/10
AT90USB82/162
• 7-5 - Reserved
The value read from these bits is always 0. Do not set these bits.
• 4 - FNCERR -Frame Number CRC Error Flag
Set by hardware when a corrupted Frame Number in start of frame packet is received.
This bit and the SOFI interrupt are updated at the same time.
• 3-0 - Reserved
The value read from these bits is always 0. Do not set these bits.
20.18.2
USB device endpoint registers
• 7-3 - Reserved
The value read from these bits is always 0. Do not set these bits.
• 2-0 - EPNUM2:0 Endpoint Number Bits
Set to select the number of the endpoint which shall be accessed by the CPU. See Section 20.5,
page 197 for more details.
Values greater than 100b are forbidden.
• 7-5 - Reserved
The value read from these bits is always 0. Do not set these bits.
• 4-0 - EPRST4:0 - Endpoint FIFO Reset Bits
Set to reset the selected endpoint FIFO prior to any other operation, upon hardware reset or
when an USB bus reset has been received. See Section 20.3, page 196 for more information
Bit
7
65
432
10
-
-
-
FNCERR
-
-
-
-
UDMFN
Read/Wri
te
RR
RR/W
R
R
R
R
Initial
Value
0
0
0
000
00
Bit
7
65
432
10
--
--
-
EPNUM2:0
UENUM
Read/Wri
te
R
R
R
R
R
R/W
R/W
R/W
Initial
Value
0
0
0
000
00
Bit
7
65
432
10
-
-
-
EPRST D4
EPRST D3
EPRST D2
EPRST D1
EPRST D0
UERST
Read/Wri
te
RR
RR/W
R/W
R/W
R/W
R/W
Initial
Value
0
0
0
000
00



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