嵌入式MPU与ARM926内核，用于工厂自动化和消费应用而优化 Embedded MPU with ARM926 core, optimized for factory automation and consumer applications
The SPEAr320 is a member of the SPEAr family of embedded MPUs, optimized for industrial automation and consumer applications. It is based on the powerful ARM926EJ-S processor up to 333 MHz, widely used in applications where high computation performance is required.
In addition, SPEAr320 has an MMU that allows virtual memory management - making the system compliant with Linux operating system. It also offers 16 KB of data cache, 16 KB of instruction cache, JTAG and ETM Embedded Trace Macrocell for debug operations.
A full set of peripherals allows the system to be used in many applications, some typical applications being factory automation, printer and consumer applications.
**Key Features**
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- ARM926EJ-S 333 MHz core
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- High-performance 8-channel DMA
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- Dynamic power-saving features
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- Configurable peripheral functions on 102 shared I/Os.
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- Memory:
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- 32 KB ROM and 8 KB internal SRAM
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- LPDDR-333/DDR2-666 external memory interface
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- SDIO/MMC card interface
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- Serial Flash memory interface SMI
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- Flexible static memory controller FSMC up to 16-bit data bus width, supporting NAND Flash
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- External memory interface EMI up to 16-bit data bus width, supporting NOR Flash and FPGAs
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- Security
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- Cryptographic accelerator
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- Connectivity
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- 2 x USB 2.0 Host
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- 1 x USB 2.0 Device
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- 2 x Fast Ethernet ports for external MII/SMII PHY
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- 2 x CAN interface
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- 3 x SSP Synchronous serial port SPI, Microwire or TI protocol
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- 2 x I2 C
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- 1 x fast IrDA interface
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- 3 x UART interface
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- 1 x standard parallel device port
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- Peripherals supported
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- TFT/STN LCD controller resolution up to 1024 x 768 and up to 24 bpp
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- Touchscreen support
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- Miscellaneous functions
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- Integrated real time clock, watchdog, and system controller
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- 8-channel 10-bit ADC, 1 Msps
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- 4 x PWM timers
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- JPEG CODEC accelerator
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- 6x 16-bit general purpose timers with programmable prescaler, 4 capture inputs
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- Up to 102 GPIOs with interrupt capability