AT91SAM9X25数据手册
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2017-11-17
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Features
• Core
– ARM926EJ-S™ ARM
®
Thumb
®
Processor running at up to 400 MHz @ 1.0V +/- 10%
– 16 Kbytes Data Cache, 16 Kbytes Instruction Cache, Memory Management Unit
• Memories
– One 64-Kbyte internal ROM embedding bootstrap routine: Boot on NAND Flash,
SDCard, DataFlash
®
or serial DataFlash. Programmable order.
– One 32-Kbyte internal SRAM, single-cycle access at system speed
– High Bandwidth Multi-port DDR2 Controller
– 32-bit External Bus Interface supporting 8-bank DDR2/LPDDR, SDR/LPSDR, Static
Memories
– MLC/SLC NAND Controller, with up to 24-bit Programmable Multi-bit Error
Correcting Code (PMECC)
• System running at up to 133 MHz
– Power-on Reset Cells, Reset Controller, Shut Down Controller, Periodic Interval
Timer, Watchdog Timer and Real Time Clock
– Boot Mode Select Option, Remap Command
– Internal Low Power 32 kHz RC and Fast 12 MHz RC Oscillators
– Selectable 32768 Hz Low-power Oscillator and 12 MHz Oscillator
– One PLL for the system and one PLL at 480 MHz optimized for USB High Speed
– Twelve 32-bit-layer AHB Bus Matrix for large Bandwidth transfers
– Dual Peripheral Bridge with dedicated programmable clock for best performance
– Two dual port 8-channel DMA Controllers
– Advanced Interrupt Controller and Debug Unit
– Two Programmable External Clock Signals
• Low Power Mode
– Shut Down Controller with four 32-bit Battery Backup Registers
– Clock Generator and Power Management Controller
– Very Slow Clock Operating Mode, Software Programmable Power Optimization
Capabilities
• Peripherals
– USB Device High Speed, USB Host High Speed and USB Host Full Speed with
dedicated On-Chip Transceiver
– Two 10/100 Mbps Ethernet MAC Controllers
– Two High Speed Memory Card Hosts
– Two CAN Controllers
– Two Master/Slave Serial Peripheral Interface
– Two Three-channel 32-bit Timer/Counters
– One Synchronous Serial Controller
– One Four-channel 16-bit PWM Controller
– Three Two-wire Interfaces
– Four USARTs, two UARTs
– One 12-channel 10-bit Analog-to-Digital Converter
– Soft Modem
• I/O
– Four 32-bit Parallel Input/Output Controllers
– 105 Programmable I/O Lines Multiplexed with up to Three Peripheral I/Os
– Input Change Interrupt Capability on Each I/O Line, optional Schmitt trigger input
– Individually Programmable Open-drain, Pull-up and pull-down resistor,
Synchronous Output
• Package
– 217-ball BGA, pitch 0.8 mm
AT91SAM
ARM-based
Embedded
MPU
SAM9X25
11054A–ATARM–27-Jul-11
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