EMBEST ATMEL SAM9G45全功能评估开发解决方案

EMBEST公司的ATMEL SAM9G45全功能评估板的主频高达400MHz，可支持WinCE和Linux操作系统的开发板调试，带有256MB NandFlash，2MB NorFlash，512KB EEPROM，4MB数据闪存，以及2个64MB的DDR2 SDRAM，并带有丰富的功能扩展如高速USB2.0（480MHz），音频输入，音频输出，10/100Mbps网络，JTAG调试接口，DBGU串口，Micro SD卡接口，SD/MMC卡接口，CMOS摄像头接口，支持8位/12位视频数据采集,主要用在工业应用如建筑物自动化,数据采集,POS终端,告警系统和医疗设备.本文介绍了AT91SAM9G45主要特性,方框图和ATMEL SAM9G45 ARM9 评估板主要特性以及电路图.
The ARM926EJ-S based AT91SAM9G45 features the frequently demanded combination of user interface functionality and high data rate connectivity, including LCD Controller, resistive touchscreen, camera interface, audio, Ethernet 10/100 and high speed USB and SDIO. With the processor running at 400MHz and multiple 100+ Mbps data rate peripherals, the AT91SAM9G45 has the performance and bandwidth to the network or local storage media to provide an adequate user experience.
The AT91SAM9G45 supports the latest generation of DDR2 and NAND Flash memory interfaces for program and data storage. An internal 133 MHz multi-layer bus architecture associated with 37 DMA channels, a dual external bus interface and distributed memory including a 64- KByte SRAM which can be configured as a tightly coupled memory (TCM) sustains the high bandwidth required by the processor and the high speed peripherals.
The I/Os support 1.8V or 3.3V operation, which are independently configurable for the memory interface and peripheral I/Os. This feature completely eliminates the need for any external level shifters. In addition it supports 0.8 ball pitch package for low cost PCB manufacturing.
The AT91SAM9G45 power management controller features efficient clock gating and a battery backup section minimizing power consumption in active and standby modes.
AT91SAM9G45主要特性:
• 400 MHz ARM926EJ-S™ ARM® Thumb® Processor
– 32 KBytes Data Cache, 32 KBytes Instructi...