NXP LPC3240+JN5168智能家居网关方案
智能家居网关,具备智能家居控制枢纽及无线路由两大功能,负责具体的安防报警,家电控制,用电信息采集.通过无线方式与智能交互终端等产品进行数据交互.本文介绍了采用LPC3240和JN5168组成家庭网关的框图,以及完整的网关系统组成部分,基于NFC的家庭网关框图.
The LPC3220/30/40/50 embedded microcontrollers were designed for low power, high performance applications. NXP achieved their performance goals using a 90 nanometer process to implement an ARM926EJ-S CPU core with a vector floating point co-processor and a large set of standard peripherals including USB On-The-Go. The LPC3220/30/40/50 operates at CPU frequencies of up to 266 MHz.
The NXP implementation uses a ARM926EJ-S CPU core with a Harvard architecture, 5-stage pipeline, and an integral Memory Management Unit (MMU). The MMU provides the virtual memory capabilities needed to support the multi-programming demands of modern operating systems. The ARM926EJ-S also has a hardware based set of DSP instruction extensions, which includes single cycle MAC operations, and hardware based nativeJazelle Java Byte-code execution. The NXP implementation has a 32 kB instruction cache and a 32 kB data cache.
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