TLV1544与TMS320VC5402通过串行口连接，此时，A／D转换芯片作为从设备，DSP提供帧同步和输入／输出时钟信号。TLV1544与DSP之间数据交换的时序图如图3所示。 开始时， 为高电平（芯片处于非激活状态），DATA IN和I/OCLK无效，DATAOUT处于高阻状态。当串行接口使CS变低（激活），芯片开始工作，I／OCLK和DATAIN能使DATA OUT不再处于高阻状态。DSP通过I／OCLK引脚提供输入／输出时钟8序列，当由DSP提供的帧同步脉冲到来后

ATmega16程序，控制1602液晶，只用了六个I/O口，我仿真过的，没有错误，而且还带Pretues图。-ATmega16 procedures, controls 1602 LCD with only six I/O ports, I' ve simulation, there are no errors, but also with Pretues map.

Simple I / O process. Although the procedure is quite simple, only five compilations, but more complex hardware circuit, the need for external MCU RAM timing very familiar with this procedure proven, you can use, containing protuse simulation map-Sim

单片机系统I/O口大电流关断，进行过电流保护，protues仿真图-SCM system I/O port High-current shutdown, over-current protection, protues simulation map