AT32UC3A3256 Atmel Corporation, AT32UC3A3256 Datasheet - Page 824
AT32UC3A3256
Manufacturer Part Number
AT32UC3A3256
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(377 pages)
2.AT32UC3A0128.pdf
(33 pages)
3.AT32UC3A0128.pdf
(159 pages)
4.AT32UC3A3128.pdf
(91 pages)
5.AT32UC3A3128.pdf
(1012 pages)
Specifications of AT32UC3A3256
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
110
Ext Interrupts
110
Usb Transceiver
1
Usb Speed
Hi-Speed
Usb Interface
Device + OTG
Spi
6
Twi (i2c)
2
Uart
4
Lin
4
Ssc
1
Sd / Emmc
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)
128
Self Program Memory
YES
External Bus Interface
1
Dram Memory
sdram
Nand Interface
Yes
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
3.0 to 3.6
Operating Voltage (vcc)
3.0 to 3.6
Fpu
No
Mpu / Mmu
Yes / No
Timers
6
Output Compare Channels
18
Input Capture Channels
12
Pwm Channels
12
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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- AT32UC3A0128 PDF datasheet
- AT32UC3A0128 PDF datasheet #2
- AT32UC3A0128 PDF datasheet #3
- AT32UC3A3128 PDF datasheet #4
- AT32UC3A3128 PDF datasheet #5
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- Download datasheet (16Mb)
Figure 30-10. Read Functional Flow Diagram
32072G–11/2011
Write the BlockLenght in the MR.BLKLEN field
Write the block count in the BLKR.BCNT field (if
Number of words to read = (MR.BLKLEN)/4
Write a zero in the DMA.DMAEN bit
Send READ_SINGLE_BLOCK
Read data in the RDR register
Number of words to read = 0 ?
Number of words to read -1
Number of words to read =
Note:
Read the SR register
SR.RXRDY = 0 ?
No
command
necessary)
1. It is assumed that this command has been correctly sent (see
2. This field is also accessible in the BLKR register.
No
(1)
No
Send SET_BLOCKLEN command
Send SELECT/DESELECT_CARD
Command
Yes
(2)
Yes
RETURN
Read with DMA
(1)
to select the card
Write the BlockLenght in the MR.BLKLEN field
write the Data Adress in the DMA Controller
write the (MR.BLKLEN)/4 for Transfer Size
(1)
Write a one in the DMA.DMAEN bit
Send READ_SINGLE_BLOCK
Configure the DMA channel X
Yes
in the DMA Controller
Read the SR register
SR.XFRDONE = 0 ?
command
RETURN
No
(1)
Figure 30-9 on page
Yes
(2)
822).
824
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