圖1.SPEAr600功能方框圖
ST的SPEAr600應(yīng)用于MPU嵌入式VoIP解決方案
2010/04/22
SPEAr600 是具有雙ARM926EJ-S核的嵌入式MPU, 性能高達(dá)733 DMIPS,支持靈活的存儲器,有功能強(qiáng)大的連接特性和可編程的LCD接口. ARM926EJ-S內(nèi)核的工作頻率高達(dá)333MHz,其中的MMU支持虛擬的存儲器管理,是系統(tǒng)能和Linux操作系統(tǒng)兼容.主要用在需要大量計(jì)算的應(yīng)用中如企業(yè)VoIP設(shè)備,可編邏輯控制器(PLC),醫(yī)療實(shí)驗(yàn)室/診斷設(shè)備,無線接入設(shè)備,家用電器等.本文介紹SPEAr600主要特性,方框圖, 典型系統(tǒng)架構(gòu)圖以及EVALSPEAR600評估板主要特性,電路圖和材料清單(BOM). 
EVALSPEAR600評估板
The EVALSPEAR600 evaluation board is a complete development platform
for SPEAr600. It offers an easy and flexible solution for demonstrating
device capabilities and quickly evaluating features and peripherals.
It integrates a SPEAr600 embedded MPU with a high-performance dual ARM
926EJ-S core, two USB 2.0 hosts, one USB 2.0 device port and a Giga-Ethernet
MAC. The evaluation boards include a complete range of hardware features
for evaluating SPEAr600 performance and for starting development of
a wide range of applications. Features include serial and parallel Flash,
DDR2 memory, USB 2.0, Giga-Ethernet, SPI, Fast IrDA, I2C, UARTs and
LCD expansion board connector. The board features an industry-standard
JTAG and ETM connectors allowing developers to choose from a wide choice
of development tools.
EVALSPEAR600評估板包括:
SPEAr Plus600
5 x 2 box header connector (COM2)
8 Mbytes serial Flash
10 GPIOs
64 Mbytes NAND Flash
8 pins for ADC channels
128 Mbytes DDR2 @ 333 MHz
3 SPI I/F
4 Kbytes serial I2C
Fast IrDA connector
2 USB 2.0 host ports
LCD expansion board connector
1 USB 2.0 device port
Debug I/F:
RJ45 Ethernet connector 10/100/1000
2 JTAGs
UART Connectors
2 ETM I/F
DB9 connector (COM1)
圖7.EVALSPEAR600評估板電路圖(4)
圖9.EVALSPEAR600評估板電路圖(6)
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