本设 计 将 转换结束状态线STS与单片机的P1.7 相连，启动转换信号CE由单

片机的丽和丽相与所得，采用查询方式来读取AD574A的转换结果，由AO来

控制读取高8位和低4位。-the design will change end of the state line STS and SCM P1.7 connected, CE start converting signals from the MCU Laguna and Laguna phase proceeds, using inquiry to read AD574A the conversion results from AO to control read high and low eight four.