AT91SAM9261集成电路（IC）的微处理器规格书PDF中文资料

特性 Features

• Incorporates the ARM926EJ-S™ ARM® Thumb® Processor

– DSP Instruction Extensions

– ARM Jazelle® Technology for Java® Acceleration

– 16 Kbyte Data Cache, 16 Kbyte Instruction Cache, Write Buffer

– 210 MIPS at 190 MHz

– Memory Management Unit

– EmbeddedICE™, Debug Communication Channel Support

– Mid-level implementation Embedded Trace Macrocell™

• Additional Embedded Memories

– 32 Kbytes of Internal ROM, Single-cycle Access at Maximum Bus Speed

– 160 Kbytes of Internal SRAM, Single-cycle Access at Maximum Processor or Bus Speed

• External Bus Interface (EBI)

– Supports SDRAM, Static Memory, NAND Flash and CompactFlash®

• LCD Controller

– Supports Passive or Active Displays

– Up to 16-bits per Pixel in STN Color Mode

– Up to 16M Colors in TFT Mode (24-bit per Pixel), Resolution up to 2048 x 2048

• USB

– USB 2.0 Full Speed (12 Mbits per second) Host Double Port

• Dual On-chip Transceivers

• Integrated FIFOs and Dedicated DMA Channels

– USB 2.0 Full Speed (12 Mbits per second) Device Port

• On-chip Transceiver, 2 Kbyte Configurable Integrated FIFOs

• Bus Matrix

– Handles Five Masters and Five Slaves

– Boot Mode Select Option

– Remap Command

• Fully Featured System Controller (SYSC) for Efficient System Management, including

– Reset Controller, Shutdown Controller, Four 32-bit Battery Backup Registers for a Total of 16 Bytes

– Clock Generator and Power Management Controller

– Advanced Interrupt Controller and Debug Unit

– Periodic Interval Timer, Watchdog Timer and Real-time Timer

– Three 32-bit PIO Controllers

• Reset Controller (RSTC)

– Based on Power-on Reset Cells, Reset Source Identification and Reset Output Control

• Shutdown Controller (SHDWC)

– Programmable Shutdown Pin Control and Wake-up Circuitry

• Clock Generator (CKGR)

– 32,768 Hz Low-power Oscillator on Battery Backup Power Supply, Providing a Permanent Slow Clock

– 3 to 20 MHz On-chip Oscillator and two PLLs

• Power Management Controller (PMC)

– Very Slow Clock Operating Mode, Software Programmable Power Optimization Capabilities

– Four Programmable External Clock Signals