SAM3U4E Atmel Corporation, SAM3U4E Datasheet - Page 388
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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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25.16.2.4
• Name: NFCDATA_Status
• Access: Read
• Reset: 0x00000000
• CMD1: Command Register Value for Cycle 1
When a Read or Write Access occurs, the Physical Memory Interface drives the IO bus with CMD1 field during the Com-
mand Latch cycle 1.
• CMD2: Command Register Value for Cycle 2
When VCMD2 field is set to true, the Physical Memory Interface drives the IO bus with CMD2 field during the Command
Latch cycle 2.
• VCMD2: Valid Cycle 2 Command
When set to true, the CMD2 field is issued after addressing cycle.
• ACYCLE: Number of Address required for the current command
When ACYCLE field is different from zero, ACYCLE Address cycles are performed after Command Cycle 1.
• CSID: Chip Select Identifier
Chip select used
• NFCEN: NFC Enable
When set to true, The NFC is enabled.
• NFCWR: NFC Write Enable
0: The NFC is in read mode.
1: The NFC is in write mode.
• NFCBUSY: NFC Busy Status Flag
If set to true, it indicates that the NFC is busy.
388
388
31
23
15
–
7
SAM3U Series
SAM3U Series
CSID
NFC DATA Status
30
22
14
–
6
29
21
13
–
5
CMD2
CMD1
ACYCLE
28
20
12
–
4
NFCBUSY
27
19
11
3
NFCWR
VCMD2
26
18
10
2
NFCEN
25
17
9
1
–
6430E–ATARM–29-Aug-11
6430E–ATARM–29-Aug-11
CMD2
CMD1
CSID
24
16
8
0
–
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