AT90USB1286-16MU ATMEL [ATMEL Corporation], AT90USB1286-16MU Datasheet - Page 309
![no-image](/images/no-image-200.jpg)
AT90USB1286-16MU
Manufacturer Part Number
AT90USB1286-16MU
Description
Microcontroller with 64/128K Bytes of ISP Flash and USB Controller
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT90USB1286-16MU.pdf
(434 pages)
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7593A–AVR–02/06
• 7-6 - Reserved
The value read from these bits is always 0. Do not set these bits.
• 5 - COUNTER1:0 - Error counter
This counter is increased by the USB controller each time an error occurs on the Pipe. When this
value reaches 3, the Pipe is automatically frozen.
Clear these bits by software.
• 4 - CRC16 - CRC16 Error
Set by hardware when a CRC16 error has been detected.
Shall be cleared by software. Setting by software has no effect.
• 3 - TIMEOUT - Time-out Error
Set by hardware when a time-out error has been detected.
Shall be cleared by software. Setting by software has no effect.
• 2 - PID - PID Error
Set by hardware when a PID error has been detected.
Shall be cleared by software. Setting by software has no effect.
• 1 - DATAPID - Data PID Error
Set by hardware when a data PID error has been detected.
Shall be cleared by software. Setting by software has no effect.
• 0 - DATATGL - Bad Data Toggle
Set by hardware when a data toggle error has been detected.
Shall be cleared by software. Setting by software has no effect.
• 7 - FIFOCON - FIFO Control
For OUT and SETUP Pipe:
Set by hardware when the current bank is free, at the same time than TXOUT or TXSTP.
Clear to send the FIFO data and to switch the bank. Setting by software has no effect.
For IN Pipe:
Set by hardware when a new IN message is stored in the current bank, at the same time than
RXIN.
Bit
Read/Write
Initial Value
FIFOCON
RW
7
0
NAKEDI
RW
6
0
RWAL
RW
5
0
PERRI
RW
4
0
TXSTPI
RW
3
0
TXOUTI
RW
2
0
AT90USB64/128
RXSTALLI
RW
1
0
RXINI
RW
0
0
UPINTX
309
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