SAM3U4E Atmel Corporation, SAM3U4E Datasheet - Page 1056
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SAM3U4E
Manufacturer Part Number
SAM3U4E
Description
Manufacturer
Atmel Corporation
Specifications of SAM3U4E
Flash (kbytes)
256 Kbytes
Pin Count
144
Max. Operating Frequency
96 MHz
Cpu
Cortex-M3
# Of Touch Channels
57
Hardware Qtouch Acquisition
No
Max I/o Pins
96
Ext Interrupts
96
Usb Transceiver
1
Quadrature Decoder Channels
1
Usb Speed
Hi-Speed
Usb Interface
Device
Spi
5
Twi (i2c)
2
Uart
5
Ssc
1
Sd / Emmc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
16
Adc Resolution (bits)
12
Adc Speed (ksps)
384
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
50
Self Program Memory
YES
External Bus Interface
1
Dram Memory
No
Nand Interface
Yes
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8/3.3
Operating Voltage (vcc)
1.62 to 3.6
Fpu
No
Mpu / Mmu
Yes / No
Timers
3
Output Compare Channels
3
Input Capture Channels
3
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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40.5.16
Name:
Addresses: 0x400B0048 [0], 0x400B0070 [1], 0x400B0098 [2], 0x400B00C0 [3]
Access:
Reset:
• BTSIZE
Buffer Transfer Size. The transfer size relates to the number of transfers to be performed, that is, for writes it refers to the
number of source width transfers to perform when DMAC is flow controller. For Reads, BTSIZE refers to the number of
transfers completed on the Source Interface. When this field is set to 0, the DMAC module is automatically disabled when
the relevant channel is enabled.
• SCSIZE
Source Chunk Transfer Size.
• DCSIZE
Destination Chunk Transfer size.
• SRC_WIDTH
1056
DONE
31
23
15
–
7
SAM3U Series
SCSIZE value
DMAC Channel x [x = 0..3] Control A Register
SRC_WIDTH
DCSIZE
DMAC_CTRLAx [x = 0..3]
0x00000000
Read-write
1X
00
01
0
1
0
1
30
22
14
–
–
6
29
21
13
–
5
Number of data transferred
Number of data transferred
DST_WIDTH
Single Transfer Size
HALF-WORD
WORD
BYTE
1
4
DCSIZE
1
4
28
20
12
4
BTSIZE
27
19
11
–
–
3
26
18
10
–
–
2
BTSIZE
25
17
–
9
1
SRC_WIDTH
6430E–ATARM–29-Aug-11
SCSIZE
24
16
8
0
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