AT32UC3A4256 Atmel Corporation, AT32UC3A4256 Datasheet - Page 320
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: 320 of 1012
- Download datasheet (16Mb)
32072G–11/2011
Gather is enabled by writing a ‘1’ to the CTLx.SRC_GATHER_EN bit. The CTLx.SINC field
determines if the address is incremented, decremented or remains fixed when a gather bound-
ary is reached. If the CTLx.SINC field indicates a fixed-address control throughout a DMA
transfer, then the CTLx.SRC_GATHER_EN bit is ignored and the gather feature is automatically
disabled.
Note: For multi-block transfers, the counters that keep track of the number of transfer left to
reach a gather/scatter boundary are re-initialized to the source gather count (SGRx.SGC) and
destination scatter count (DSRx.DSC), respectively, at the start of each block transfer.
Figure 19-4. Destination Scatter Transfer
Scatter Increment
Scatter Increment
A0 + 0x218
A0 + 0x210
A0 + 0x208
A0 + 0x200
A0 + 0x118
A0 + 0x110
A0 + 0x108
A0 + 0x100
A0 + 0x018
A0 + 0x010
A0 + 0x008
A0
System Memory
0 x 080
0 x 080
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
d3
d7
d4
d0
d11
d8
d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d11
CTLx.DST_TR_WIDTH = 3'b011 (64bit/8 = 8 bytes)
DSR.DSI = 16
DSR.DSC = 4
DSR.DSI * 8 = 0x80 (Scatter Increment in bytes)
Scatter Boundary A0 + 0x220
Scatter Boundary A0 + 0x120
Scatter Boundary A0 + 0x020
Data Stream
320
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