一本介绍单片机外围电路的书籍，很详细的介绍了单片机外围电路的设计，适合做硬件的人员在设计单片机外围电路的时候参考。-A single-chip peripheral circuits book describes very detailed descr iption of the single-chip peripheral circuit design, suitable for single-chip hardware in the design of the external circui