译码电路接收测量端模拟信号，转化为7段显示的数字信号，发送到数据锁存器上。
The A/D decoding circuit received simulation signal form measurement port and converted the signals into data signals which displayed by 7-segment, then signals were sent to data latch.
控制电路翻译操作码，并且通过发送相应的控制信号来执行指令。这些信号控制数据的传送和ALU操作的执行。
Control circuitry interprets the opcode and executes the instruction by sending out the appropriate control signals to cause data to be moved or an operation to be performed by the ALU.
详细阐述发送电路、接收通道电路、数据采集电路、万用表电路的设计。
It explicates design of transmitting circuit, receiving channel circuit, data acquisition circuit and multimeter circuit.
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