本手册主要介绍了一款MCU，这款MCU主要适用于低电压的家电、手持工具等，要求空间体积小的产品，可以实现方波有霍尔、无霍尔的控制。(This manual introduces an MCU, this MCU is mainly applicable to low-voltage appliances, hand tools, etc., requiring space products of small size, you can achieve square wave Holzer, no Holzer control.)