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介绍了TMS320C80存贮器接口电路的特点，IDT7025双口RAM解决端口竞争的令牌传递法原理；并给出了基于IDT7025双口RAM的TMS320C80与PC机通信的接口电路。
Introduces the characteristics of TMS320C80 memory interface circuit, IDT7025 dual-port RAM to solve the competition of the token token transfer principle; and gives the TTS320C80 based on IDT7025 dual-port RAM and PC communication interface circuit.