AT32UC3A4256 Atmel Corporation, AT32UC3A4256 Datasheet - Page 822
AT32UC3A4256
Manufacturer Part Number
AT32UC3A4256
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 AT32UC3A4256
Flash (kbytes)
256 Kbytes
Pin Count
100
Max. Operating Frequency
66 MHz
Cpu
32-bit AVR
Hardware Qtouch Acquisition
No
Usb Transceiver
1
Usb Speed
Hi-Speed
Usb Interface
Device + OTG
Spi
6
Twi (i2c)
2
Uart
4
Ssc
1
Sd / Emmc
2
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
128
Self Program Memory
YES
Dram Memory
No
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
6
Input Capture Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AT32UC3A4256S-C1UR
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
AT32UC3A4256S-U
Manufacturer:
ST
Quantity:
79
Part Number:
AT32UC3A4256S-U
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
- AT32UC3A0128 PDF datasheet
- AT32UC3A0128 PDF datasheet #2
- AT32UC3A0128 PDF datasheet #3
- AT32UC3A3128 PDF datasheet #4
- AT32UC3A3128 PDF datasheet #5
- Current page: 822 of 1012
- Download datasheet (16Mb)
30.6.3
32072G–11/2011
Data Transfer Operation
Figure 30-9. Command/Response Functional Flow Diagram
Note:
The MultiMedia Card allows several read/write operations (single block, multiple blocks, stream,
etc.). These kind of transfers can be selected setting the Transfer Type field in the CMDR regis-
ter (CMDR.TRTYP).
These operations can be done using the features of the DMA Controller.
In all cases, the Data Block Length must be defined either in the Data Block Length field in the
MR register (MR.BLKLEN)), or in the Block Register (BLKR). This field determines the size of
the data block.
1. If the command is SEND_OP_COND, the CRC error bit is always present (refer to R3
Wait for SR.CMDRY bit set
response in the MultiMedia Card specification).
Check error bits in the
SR register
to one
(1)
Set the command argument
Read response if required
Read the SR register
ARGR = Argument
CMD = Command
Set the command
Status error bits?
SR.CMDRDY
RETURN OK
1
(1)
RETURN ERROR
Yes
0
(1)
822
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