FreescaleMC9S12XHY256汽车控制解决方案FreescaleMC9S12XHY256汽车控制解决方案Freescale公司的MC9S12XHY系列是16位微控制器,具有高性能的32位特性,CPU12XV1CPU内核具有高达40MHz总线频率,支持CAN和LIN/J2602通信,并提供多达4个步进马达控制以及40x4LCD驱动器,带ECC特性的多达245KB片上闪存和8KB数据闪存,12KB片上SRAM等功能.目标用在低端仪表盘,汽车HVAC步进马达以及汽车音频系统.本文介绍了MC9S12XHY256主要特性,方框图,以及DEMO9S12XHY256演示板主要特性和电路图.TheMC9S12XHYfamilyisanoptimized,automotive,16-bitmicrocontrollerproductlinefocusedonlow-costandhigh-performance.Thisfamilyisintendedtobridgefromlow-end16-bitmicrocontrollers,suchasMC9S12HYfamily,tohighperformance32-bitsolutions.TheMC9S12XHYfamilyistargetedatthelowerendofautomotiveinstrumentclusterapplications,itincludessupportforCANandLIN/J2602communicationanddeliverstypicalclusterrequirementssuchassteppermotorcontrolwithstepperstalldetec