SAM3U4E Atmel Corporation, SAM3U4E Datasheet - Page 308
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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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Figure 21-1. Embedded Flash Organization
6430E–ATARM–29-Aug-11
6430E–ATARM–29-Aug-11
Start Address + Flash size -1
The embedded Flash size, the page size, the lock regions organization and GPNVM bits defini-
tion are described in the product definition section. The Enhanced Embedded Flash Controller
(EEFC) returns a descriptor of the Flash controlled after a get descriptor command issued by the
application (see
• One write buffer that manages page programming. The write buffer size is equal to the page
• Several lock bits used to protect write/erase operation on several pages (lock region). A lock
• Several bits that may be set and cleared through the Enhanced Embedded Flash Controller
size. This buffer is write-only and accessible all along the 1 MByte address space, so that
each word can be written to its final address.
bit is associated with a lock region composed of several pages in the memory plane.
(EEFC) interface, called General Purpose Non Volatile Memory bits (GPNVM bits).
Start Address
“Getting Embedded Flash Descriptor” on page
Memory Plane
Page (n*m-1)
Page (m-1)
Page 0
Lock Region 0
Lock Region 1
Lock Region (n-1)
312).
SAM3U Series
SAM3U Series
Lock Bit 0
Lock Bit 1
Lock Bit (n-1)
308
308
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