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AT90USB82 Datasheet(PDF) 216 Page - ATMEL Corporation

Part # AT90USB82
Description  8-bit Microcontroller with 8/16K Bytes of ISP Flash
PDF  306 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT90USB82 Datasheet(HTML) 216 Page - ATMEL Corporation

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216
7707D–AVR–07/08
AT90USB82/162
For OUT endpoint, it indicates the number of busy bank(s) filled by OUT transaction from the
host.
00b
All banks are free
01b
1 busy bank
10b
2 busy banks
11b
Reserved.
• 7-3 - Reserved
The value read from these bits is always 0. Do not set these bits.
• 2 - CTRLDIR - Control Direction (Flag, and bit for debug purpose)
Set by hardware after a SETUP packet, and gives the direction of the following packet:
- 1 for IN endpoint
- 0 for OUT endpoint.
Can not be set or cleared by software.
• 1-0 - CURRBK1:0 - Current Bank (all endpoints except Control endpoint) Flag
Set by hardware to indicate the number of the current bank:
00b
Bank0
01b
Bank1
1xb
Reserved.
Can not be set or cleared by software.
• 7 - FIFOCON - FIFO Control Bit
For OUT and SETUP Endpoint:
Set by hardware when a new OUT message is stored in the current bank, at the same time than
RXOUT or RXSTP.
Clear to free the current bank and to switch to the following bank. Setting by software has no
effect.
Bit
7
654
3210
-
-
-
-
-
CTRLDIR
CURRBK1:0
UESTA1X
Read/Wri
te
R
RRR
RRR
Initial
Value
0
000
0000
Bit
7
654
3210
FIFOCON
NAKINI
RWAL
NAKOUTI
RXSTPI
RXOUTI
STALLEDI
TXINI
UEINTX
Read/Wri
te
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial
Value
0
000
0000



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