AT32UC3B0256 Atmel Corporation, AT32UC3B0256 Datasheet - Page 375
AT32UC3B0256
Manufacturer Part Number
AT32UC3B0256
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(377 pages)
2.AT32UC3A0128.pdf
(33 pages)
3.AT32UC3A0128.pdf
(159 pages)
4.AT32UC3B0128.pdf
(684 pages)
5.AT32UC3B0128.pdf
(107 pages)
Specifications of AT32UC3B0256
Flash (kbytes)
256 Kbytes
Pin Count
64
Max. Operating Frequency
60 MHz
Cpu
32-bit AVR
# Of Touch Channels
32
Hardware Qtouch Acquisition
No
Max I/o Pins
44
Ext Interrupts
44
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device + OTG
Spi
4
Twi (i2c)
1
Uart
3
Ssc
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
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
32
Self Program Memory
YES
Dram Memory
No
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
- AT32UC3B0128 PDF datasheet #4
- AT32UC3B0128 PDF datasheet #5
- Current page: 375 of 684
- Download datasheet (11Mb)
32059L–AVR32–01/2012
•Detailed description
TXINI
FIFOCON
Figure 22-18. Example of an IN Endpoint with 2 Data Banks
The data is written, following the next flow:
If the endpoint uses several banks, the current one can be written while the previous one is
being read by the host. Then, when the user 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 Kill IN Bank (KILLBK) bit in UECONn is
used to kill the last written bank. The best way to manage this abort is to apply the algorithm rep-
resented on
more details about the KILLBK bit.
• When the bank is empty, TXINI and FIFOCON are set, what triggers an EPnINT interrupt if
• The user acknowledges the interrupt by clearing TXINI.
• The user writes the data into the current bank by using the USB Pipe/Endpoint nFIFO Data
• The user allows the controller to send the bank and switches to the next bank (if any) by
TXINE is one.
virtual segment (see
471), until all the data frame is written or the bank is full (in which case RWALL is cleared and
the Byte Count (BYCT) field in UESTAn reaches the endpoint size).
clearing FIFOCON.
SW
write data to CPU
BANK 0
Figure 22-19 on page
”USB Pipe/Endpoint n FIFO Data Register (USBFIFOnDATA)” on page
SW
IN
SW
write data to CPU
376. See
BANK 1
(bank 0)
DATA
”Endpoint n Control Register” on page 432
SW
HW
ACK
SW
write data to CPU
IN
BANK0
(bank 1)
DATA
to have
ACK
375
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