freescale的sensor方案2

Keywords： lin bus  , periodic wake-up,   MM912_637FS

摘要：本评估模块支持MM912J637，评估系统基于飞思卡尔S12单片机技术，同时这是一个完全实现了LIN电池监控装置。

基本特性：

The MM912_637 enables precision measurement  of key battery parameters in automotive and other applications. The device integrates an HCS12  microcontroller and a SMARTMOS analog control IC into a single package solution. The analog die combines system basis and application specific functions, including a Local Interconnect Network (LIN) transceiver, and a two-channel 16-bit sigma delta analog to digital converter (ADC) for simultaneous measurement of battery voltage and current. An integrated temperature sensor combined with battery mounting allows measurement of battery temperature. Control of the analog die is through 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. The MM912_637 also includes an internal oscillator, 96 k or 128 k Bytes of Flash memory, and 6.0 k Bytes of RAM. An optional external temperature sensor is also supported.

方案描述：
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