Freescale MM912F634汽车继电器驱动和LIN连接解决方案

Freescale公司的MM912F634是S12 MagniV系列产品中一员,集成了继电器驱动以及LIN收发器.器件采用16位S12 CPU,具有32KB闪存和2.0KB RAM,背景调试(BDM)和调试模块(DBG),带SCI的LIN 2.1物理层接口,10位15通路的ADC,16位4通路的定时器模块(TIM16B4C),8位2路PWM,六种高压/叫醒输入和三个低压GPIO,主要用在汽车的门窗提升和座位控制以及LIN连接.本文介绍了MM912F634主要特性,方框图,简化应用电路以及评估板KIT912F634EVME主要特性,电路图和材料清单(BOM).

The MM912_634 is part of the S12 MagniV portfolio which simplifies system design with easy-to-use, expertly integrated mixed-signal microcontrollers for automotive applications. This dual-die solution is built on proven S12 technology, enabling software and tool compatibility across the entire portfolio. The SMARTMOS-based analog die combines System Basis Chip (SBC) functionality and application specific functions, which include a Local Interconnect Network (LIN) transceiver, relay drivers, a DC motor current sense circuit, and a selection of high and low side digital I/O. Control of the analog die is via a new high performance internal Die to Die interface (D2D), which seamlessly integrates the analog IC registers into the MCU register map, to provide faster access than SPI based systems.
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