ATEVK1104 Atmel, ATEVK1104 Datasheet - Page 574
![KIT DEV/EVAL FOR AVR32 AT32UC3A](/photos/9/20/92035/atevk1104_sml.jpg)
ATEVK1104
Manufacturer Part Number
ATEVK1104
Description
KIT DEV/EVAL FOR AVR32 AT32UC3A
Manufacturer
Atmel
Series
AVR®32r
Type
MCUr
Datasheets
1.ATAVRONE-PROBECBL.pdf
(16 pages)
2.ATEVK1104.pdf
(826 pages)
3.ATEVK1104.pdf
(90 pages)
4.ATEVK1104.pdf
(6 pages)
5.ATEVK1104.pdf
(12 pages)
Specifications of ATEVK1104
Contents
Evaluation Board, Software and Documentation
Processor To Be Evaluated
AT32UC3A3
Data Bus Width
32 bit
Interface Type
USB, SPI, USART
Silicon Manufacturer
Atmel
Core Architecture
AVR
Core Sub-architecture
AVR UC3
Silicon Core Number
AT32UC3A3256
Silicon Family Name
AVR
Kit Contents
Board CD Docs
Rohs Compliant
Yes
For Use With/related Products
AT32UC3A3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATEVK1104
Manufacturer:
Atmel
Quantity:
135
- ATAVRONE-PROBECBL PDF datasheet
- ATEVK1104 PDF datasheet #2
- ATEVK1104 PDF datasheet #3
- ATEVK1104 PDF datasheet #4
- ATEVK1104 PDF datasheet #5
- Current page: 574 of 826
- Download datasheet (20Mb)
For isochronous, bulk and interrupt OUT endpoints:
This bit is inactive (cleared) for isochronous, bulk and interrupt IN endpoints.
• RXSTPI: Received SETUP Interrupt Flag
For control endpoints, set by hardware to signal that the current bank contains a new valid SETUP packet. This triggers an
EPXINT interrupt if RXSTPE = 1.
Shall be cleared by software (by setting the RXSTPIC bit) to acknowledge the interrupt and to free the bank.
This bit is inactive (cleared) for bulk and interrupt IN/OUT endpoints and it means UNDERFI for isochronous IN/OUT
endpoints.
• UNDERFI: Underflow Interrupt Flag
For isochronous IN/OUT endpoints, set by hardware when an underflow error occurs. This triggers an EPXINT interrupt if
UNDERFE = 1.
An underflow can occur during IN stage if the host attempts to read from an empty bank. A zero-length packet is then auto-
matically sent by the USB controller.
An underflow can also occur during OUT stage if the host sends a packet while the bank is already full. Typically, the CPU
is not fast enough. The packet is lost.
Shall be cleared by software (by setting the UNDERFIC bit) to acknowledge the interrupt.
This bit is inactive (cleared) for bulk and interrupt IN/OUT endpoints and it means RXSTPI for control endpoints.
• NAKOUTI: NAKed OUT Interrupt Flag
Set by hardware when a NAK handshake has been sent in response to an OUT request from the host. This triggers an
EPXINT interrupt if NAKOUTE = 1.
Shall be cleared by software (by setting the NAKOUTIC bit) to acknowledge the interrupt.
• NAKINI: NAKed IN Interrupt Flag
Set by hardware when a NAK handshake has been sent in response to an IN request from the host. This triggers an EPX-
INT interrupt if NAKINE = 1.
Shall be cleared by software (by setting the NAKINIC bit) to acknowledge the interrupt.
• OVERFI: Overflow Interrupt Flag
Set by hardware when an overflow error occurs. This triggers an EPXINT interrupt if OVERFE = 1.
For all endpoint types, an overflow can occur during OUT stage if the host attempts to write into a bank that is too small for
the packet. The packet is acknowledged and the Received OUT Data interrupt (RXOUTI) is raised as if no overflow had
occurred. The bank is filled with all the first bytes of the packet that fit in.
32058J–AVR32–04/11
Shall be cleared by software (by setting the RXOUTIC bit) to acknowledge the interrupt and to free the bank.
Set by hardware at the same time as FIFOCON when the current bank is full. This triggers an EPXINT interrupt if
RXOUTE = 1.
Shall be cleared by software (by setting the RXOUTIC bit) to acknowledge the interrupt, what has no effect on the
endpoint FIFO.
The software then reads from the FIFO and clears the FIFOCON bit to free the bank. If the OUT endpoint is com-
posed of multiple banks, this also switches to the next bank. The RXOUTI and FIFOCON bits are updated by
hardware in accordance with the status of the next bank.
RXOUTI shall always be cleared before clearing FIFOCON.
AT32UC3A
574
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