AT32UC3A0256-ALUT Atmel, AT32UC3A0256-ALUT Datasheet - Page 519
![IC MCU AVR32 256KB FLASH 144LQFP](/photos/6/72/67244/144l1-lqfp_sml.jpg)
AT32UC3A0256-ALUT
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT32UC3A0256-ALUT
Manufacturer:
ATMEL
Quantity:
167
- Current page: 519 of 826
- Download datasheet (20Mb)
Figure 30-20. Example of an OUT Endpoint with 1 Data Bank
Figure 30-21. Example of an OUT Endpoint with 2 Data Banks
30.7.2.13.2 Detailed Description
30.7.2.14
32058J–AVR32–04/11
RXOUTI
FIFOCON
RXOUTI
FIFOCON
OUT
OUT
Underflow
(bank 0)
DATA
(bank 0)
DATA
The data is read by the firmware, following the next flow:
If the endpoint uses several banks, the current one can be read by the firmware while the follow-
ing one is being written by the host. Then, when the firmware clears FIFOCON, the following
bank may already be ready and RXOUTI is set immediately.
This error exists only for isochronous IN/OUT endpoints. It raises the Underflow interrupt
(UNDERFI), what 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 automatically sent by the USB controller.
•when the bank is full, RXOUTI and FIFOCON are set, what triggers an EPXINT interrupt if
•the firmware acknowledges the interrupt by clearing RXOUTI;
•the firmware can read the byte count of the current bank from BYCT to know how many bytes
•the firmware reads the data from the current bank by using the USB Pipe/Endpoint X FIFO
•the firmware frees the bank and switches to the next bank (if any) by clearing FIFOCON.
RXOUTE = 1;
to read, rather than polling RWALL;
Data register (USB_FIFOX_DATA), until all the expected data frame is read or the bank is
empty (in which case RWALL is cleared by hardware and BYCT reaches 0);
HW
ACK
HW
ACK
SW
read data from CPU
SW
BANK 0
NAK
OUT
read data from CPU
BANK 0
(bank 1)
DATA
SW
OUT
ACK
(bank 0)
DATA
HW
SW
HW
ACK
read data from CPU
SW
read data from CPU
AT32UC3A
BANK 1
SW
BANK 0
519
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