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Section 3
Board Description
3.1
AT91SAM9XE 512/256/128 Microcontroller
? Incorporates the ARM926EJ-S ? ARM ? Thumb ? Processor
– DSP instruction Extensions, ARM Jazelle ? Technology for Java ? Acceleration
– 8 Kbyte Data Cache, 16 Kbyte Instruction Cache, Write Buffer
– 200 MIPS at 180 MHz
– Memory Management Unit
– EmbeddedICE ? , Debug Communication Channel Support
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Additional Embedded Memories
– One 32 Kbyte Internal ROM, Single-cycle Access at Maximum Matrix Speed
– One 32 Kbyte (for AT91SAM9XE256 and AT91SAM9XE512) or 16 Kbyte (for AT91SAM9XE128) Internal SRAM, Single-cycle
Access at Maximum Matrix Speed
– 128, 256 or 512 Kbytes of Internal High-speed Flash for AT91SAM9XE128, AT91SAM9XE256 or AT91SAM9XE512
Respectively. Organized in 256, 512 or 1024 Pages of 512 Bytes Respectively.
? 128-bit Wide Access
? Fast Read Time: 60 ns
? Page Programming Time: 4 ms, Including Page Auto-erase,
Full Erase Time: 10 ms
? 10,000 Write Cycles, 10 Years Data Retention, Page Lock Capabilities, Flash Security Bit
Enhanced Embedded Flash Controller (EEFC)
– Interface of the Flash Block with the 32-bit Internal Bus
– Increases Performance in ARM and Thumb Mode with 128-bit Wide Memory Interface
External Bus Interface (EBI)
– Supports SDRAM, Static Memory, ECC-enabled NAND Flash and CompactFlash ?
USB 2.0 Full Speed (12 Mbits per second) Device Port
– On-chip Transceiver, 2,688-byte Configurable Integrated DPRAM
USB 2.0 Full Speed (12 Mbits per second) Host Single Port in the 208-pin PQFP Device and Double Port in 217-ball LFBGA
Device
– Single or Dual On-chip Transceivers
– Integrated FIFOs and Dedicated DMA Channels
Ethernet MAC 10/100 Base-T
– Media Independent Interface or Reduced Media Independent Interface
– 28-byte FIFOs and Dedicated DMA Channels for Receive and Transmit
Image Sensor Interface
– ITU-R BT. 601/656 External Interface, Programmable Frame Capture Rate
– 12-bit Data Interface for Support of High Sensibility Sensors
– SAV and EAV Synchronization, Preview Path with Scaler, YCbCr Format
Bus Matrix
– Six 32-bit-layer Matrix
– Remap Command
AT91SAM9XE-EK Evaluation Board User Guide
3-1
6311A–ATARM–04-Feb-08
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