AT32UC3A0256AU Atmel Corporation, AT32UC3A0256AU Datasheet - Page 576
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AT32UC3A0256AU
Manufacturer Part Number
AT32UC3A0256AU
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(98 pages)
2.AT32UC3A0128.pdf
(826 pages)
3.AT32UC3A0128.pdf
(377 pages)
4.AT32UC3A0128.pdf
(33 pages)
5.AT32UC3A0128.pdf
(159 pages)
6.AT32UC3A0128AU.pdf
(2 pages)
Specifications of AT32UC3A0256AU
Flash (kbytes)
256 Kbytes
Pin Count
144
Max. Operating Frequency
66 MHz
Cpu
32-bit AVR
# Of Touch Channels
32
Hardware Qtouch Acquisition
No
Max I/o Pins
109
Ext Interrupts
109
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device + OTG
Spi
6
Twi (i2c)
1
Uart
4
Ssc
1
Ethernet
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
384
Resistive Touch Screen
No
Dac Channels
2
Dac Resolution (bits)
16
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
64
Self Program Memory
YES
External Bus Interface
1
Dram Memory
sdram
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
3.0-3.6 or (1.65-1.95+3.0-3.6)
Operating Voltage (vcc)
3.0-3.6 or (1.65-1.95+3.0-3.6)
Fpu
No
Mpu / Mmu
Yes / No
Timers
10
Output Compare Channels
16
Input Capture Channels
6
Pwm Channels
13
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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- AT32UC3A0128 PDF datasheet
- AT32UC3A0128 PDF datasheet #2
- AT32UC3A0128 PDF datasheet #3
- AT32UC3A0128 PDF datasheet #4
- AT32UC3A0128 PDF datasheet #5
- AT32UC3A0128AU PDF datasheet #6
- Current page: 576 of 826
- Download datasheet (11Mb)
32058K AVR32-01/12
For OUT endpoints, it indicates the number of banks filled by OUT transactions from the host. When all banks are busy,
this triggers an EPXINT interrupt if NBUSYBKE = 1.
Note that when the FIFOCON bit is cleared (by setting the FIFOCONC bit) to validate a new bank, this field is updated 2 or
3 clock cycles later to calculate the address of the next bank.
An EPXINT interrupt is triggered if :
- for IN endpoint, NBUSYBKE=1 and all the banks are free.
- for OUT endpoint, NBUSYBKE=1 and all the banks are busy.
• CURRBK: Current Bank
For non-control endpoints, set by hardware to indicate the current bank:
Note that this field may be updated 1 clock cycle after the RWALL bit changes, so the user should not poll this field as an
interrupt flag.
• RWALL: Read/Write Allowed
For IN endpoints, set by hardware when the current bank is not full, i.e. the software can write further data into the FIFO.
For OUT endpoints, set by hardware when the current bank is not empty, i.e. the software can read further data from the
FIFO.
Never set if STALLRQ = 1 or in case of error.
Cleared by hardware otherwise.
This bit shall not be used for control endpoints.
• CTRLDIR: Control Direction
Set by hardware after a SETUP packet to indicate the direction of the following packet:
Can not be set or cleared by software.
• CFGOK: Configuration OK Status
This bit is updated when the ALLOC bit is set.
Set by hardware if the endpoint X number of banks (EPBK) and size (EPSIZE) are correct compared to the maximal
allowed number of banks and size for this endpoint and to the maximal FIFO size (i.e. the DPRAM size).
If this bit is cleared by hardware, the user should reprogram the UECFGX register with correct EPBK and EPSIZE values.
• BYCT: Byte Count
Set by the hardware to indicate the byte count of the FIFO.
0
0
1
1
CTRLDIR
CURRBK
0
1
0
1
0
1
Control Direction
OUT
IN
Current Bank
Bank0
Bank1
Bank2
Reserved
AT32UC3A
576
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