پردازنده at91sam9260
پردازنده AT91SAM9260 محصول شركت Atmel است كه معماري آن بر پايه هسته قدرتمند ARM926EJ-S بوده داراي حداكثر سرعت پردازش 210MHZ مي باشد . بخش External Bus Interface آن امكان ارتباط با حافظه هاي خارجي از قبيل Sram , Nandflash , Compact Flash را فراهم مي آورد و ساير امكانات آن به شرح زير مي باشد :
[LEFT]• 180 MHz ARM926EJ-S™ ARM® Thumb® Processor
– 8 KBytes Data Cache, 8 KBytes Instruction Cache, MMU
• Memories
– 32-bit External Bus Interface supporting 4-bank SDRAM/LPSDR, Static Memories,
CompactFlash, SLC NAND Flash with ECC
– Two 4-kbyte internal SRAM, single-cycle access at system speed
– One 32-kbyte internal ROM, embedding bootstrap routine
• Peripherals
– ITU-R BT. 601/656 Image Sensor Interface
– USB Device and USB Host with dedicated On-Chip Transceiver
– 10/100 Mbps Ethernet MAC Controller
– One High Speed Memory Card Host
– Two Master/Slave Serial Peripheral Interfaces
– Two Three-channel 32-bit Timer/Counters
– One Synchronous Serial Controller
– One Two-wire Interface
– Four USARTs
– Two UARTs
– 4-channel 10-bit ADC
• System
– 90 MHz six 32-bit layer AHB Bus Matrix
– 22 Peripheral DMA Channels
– Boot from NAND Flash, SDCard, DataFlash® or serial DataFlash
– Reset Controller with On-Chip Power-on Reset
– Selectable 32,768 Hz Low-Power and 3-20 MHz Main Oscillator
– Internal Low-Power 32 kHz RC Oscillator
– One PLL for the system and one PLL optimized for USB
– Two Programmable External Clock Signals
– Advanced Interrupt Controller and Debug Unit
– Periodic Interval Timer, Watchdog Timer and Real Time Timer
• I/O
– Three 32-bit Parallel Input/Output Controllers
– 96 Programmable I/O Lines Multiplexed with up to Two Peripheral I/Os
• Package
– 217-ball BGA, 0.8 mm pitch
– 208-pin QFP, 0.5 mm pitch
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