嵌入式控制和连接解决方案的处理器模块

　　嵌入式控制和连接解决方案的处理器模块

　　尽管MCU继续在逻辑和功能密度的扩大，和今天的设计功能要求的性能是这样的，往往很难提供整体解决方案。结果，嵌入式处理器在许多情况下实际上变形成一个模块，集成了处理器、RAM、闪存、甚至电源以及其他支持分立元件。一种设计趋势，开始在一个典型的PC处理器（处理器模块开始取代单芯片解决方案，在Pentium II天）现在已经完全出现在嵌入式空间所需的功能，并决定选择一个模块可以有效的行动最高效地实现了设计的时间。

　　本文探讨了现成的模块封装单个功能以及整个系统处理能力。

　　Modular means replaceable

　　Although many simple functions can be reduced to basic logical functions， designing with discrete logic chips may not be the best approach， especially during the developmental phase where test and observation often means changing the logic or tweaking it a bit. Because of this， a programmable solution is the fastest answer since changes in logical function can take place without lifting a soldering iron.

　　Based on the Microchip PIC16C56a， the BS1-IC Basic Stamp module from Parallax is worth a close look （Figure 1）。 A simple SIP in-line socket on your carrier board couples power and signals to a small， programmable processor module. This is a 4 MHz micro module that runs very-small and limited basic programs using the PIC processor， providing eight I/O pins and up to 80 instructions in a program with only 16 bytes of RAM.