Freescale MC9S12XHY256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, CPU12XV1 CPU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40x4 LCD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.
The MC9S12XHY family is an optimized, automotive, 16-bit microcontroller product line focused on low-cost and high-performance. This family is intended to bridge from low-end 16-bit microcontrollers, such as MC9S12HY family, to high performance 32-bit solutions. The MC9S12XHY family is targeted at the lower end of automotive instrument cluster applications, it includes support for CAN and LIN/J2602 communication and delivers typical cluster requirements such as stepper motor control with stepper stall detection (SSD) and LCD Driver.
The MC9S12XHY family delivers all the advantages and efficiencies of a 16-bit MCU while retaining the low cost, power consumption, EMC, and code-size efficiency advantages currently enjoyed by users of Freescale’s existing 8-bit and 16-bit MCU families. Like the MC9S12HY family, the MC9S12XHY family will run 16-bit wide accesses without wait states for all peripherals and memories. The MC9S12XHY family will be available in 100-pin LQFP and 112-pin LQFP package options and aims to maximize pin compatibility with the MC9S12HY family in the 100 LQFP. In addition to the I/O ports available in each module, further I/O ports are available with interrupt capability allowing wake-up from stop or wait modes.
MC9S12XHY256主要特性:
CPU12XV1 CPU core, with up to 40Mhz bus frequency
Up to 256 Kbyte on-chip flash with ECC and 8Kbyte data flash with ECC.
Up to 12Kbyte on-chip SRAM
Up to 40x4 LCD driver
Stepper Motor Controller with up to drivers for up to 4 motors, plus four Stepper Stall Detector modules (one for each motor)
Phase locked loop (IPLL) frequency...