Bus extending system

阅读:757发布:2022-06-09

专利汇可以提供Bus extending system专利检索,专利查询,专利分析的服务。并且PURPOSE:To connect a memory and an input-output device to either of a main body side and a extending side by detecting a data drive of the memory or the input-output device on an extended system bus and executing a make and break control of a two-way buffer of a data signal. CONSTITUTION:A memory and input-output devices 25 and 26 connected to an extending system bus 15 give and take data in accordance with an address 151 and a command 152 of the extending system bus 15. The memory and the input- output devices 25 and 26 are selected when an address designated by a basic data processing device (BPU) is coincident with an address assigned to the self- device. When they are not selected, data buses 113 and 153 are not driven and go to a floating condition. A control circuit 144 makes a control signal 134r active only when it is detected at the time of reading data that the data bus 153 of the extending system bus 15 is driven, and permits data transmission from the extending system bus 15 to a system bus 11.,下面是Bus extending system专利的具体信息内容。

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