AT32UC3A0256-ALUT Atmel, AT32UC3A0256-ALUT Datasheet - Page 517

• Manufacturer Part Number: AT32UC3A0256-ALUT
• Description: IC MCU AVR32 256KB FLASH 144LQFP
• Manufacturer: Atmel
• Series: AVR®32 UC3r

Specifications of AT32UC3A0256-ALUT

• Core Processor: AVR
• Core Size: 32-Bit
• Speed: 66MHz
• Connectivity: EBI/EMI, Ethernet, I²C, SPI, SSC, UART/USART, USB OTG
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 109
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 64K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-LQFP
• Processor Series: AT32UC3x
• Core: AVR32
• Data Bus Width: 32 bit
• Data Ram Size: 64 KB
• Interface Type: 2-Wire, RS-485, SPI, USART
• Maximum Clock Frequency: 66 MHz
• Number Of Programmable I/os: 69
• Number Of Timers: 3
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR32, EWAVR32-BL, KSK-EVK1100-PL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATEXTWIFI, ATEVK1100, ATEVK1105
• Minimum Operating Temperature: - 40 C
• Controller Family/series: AT32UC3A
• No. Of I/o's: 109
• Ram Memory Size: 64KB
• Cpu Speed: 66MHz
• No. Of Timers: 1
• Rohs Compliant: Yes
• Package: 144LQFP
• Device Core: AVR32
• Family Name: AT32
• Maximum Speed: 66 MHz
• Operating Supply Voltage: 1.8|3.3 V
• For Use With: ATEVK1105 - KIT EVAL FOR AT32UC3A0ATAVRONEKIT - KIT AVR/AVR32 DEBUGGER/PROGRMMR770-1008 - ISP 4PORT ATMEL AVR32 MCU SPIATEVK1100 - KIT DEV/EVAL FOR AVR32 AT32UC3A
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Figure 30-18. Example of an IN Endpoint with 2 Data Banks
30.7.2.12.2 Detailed Description
32058J–AVR32–04/11
TXINI
FIFOCON
SW
write data to CPU
The data is written by the firmware, following the next flow:
If the endpoint uses several banks, the current one can be written by the firmware while the pre-
vious one is being read by the host. Then, when the firmware clears FIFOCON, the following
bank may already be free and TXINI is set immediately.
An “Abort” stage can be produced when a zero-length OUT packet is received during an IN
stage of a control or isochronous IN transaction. The KILLBK bit is used to kill the last written
bank. The best way to manage this abort is to apply the algorithm represented on
•when the bank is empty, TXINI and FIFOCON are set, what triggers an EPXINT interrupt if
•the firmware acknowledges the interrupt by clearing TXINI;
•the firmware writes the data into the current bank by using the USB Pipe/Endpoint X FIFO
•the firmware allows the controller to send the bank and switches to the next bank (if any) by
BANK 0
TXINE = 1;
Data register (USB_FIFOX_DATA), until all the data frame is written or the bank is full (in
which case RWALL is cleared by hardware and BYCT reaches the endpoint size);
clearing FIFOCON.
SW
IN
SW
write data to CPU
BANK 1
(bank 0)
DATA
SW
HW
ACK
SW
write data to CPU
IN
BANK0
(bank 1)
DATA
AT32UC3A
ACK
Figure
30-19.
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