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Motorola的M6800外围扩展线与MC68010直接兼容。这些设备中特别有用的是: MC6821 外围接口转接器 MC6840 可编程序计时模块 MC6843 软磁盘控制器 MC6845 CRT控制器 MC6850 异步通信接口转接器 MG6852 同步串行数据转接器 MC6854 先行数据链控制器 MC68488 通用接口转接器为了把同步的M6800外围设备与异步MC68010连接,该处理器修改它的总线周期以满足M6800周期要求(无论何时,M6800设备地址可被检出)。这是可以做到的,因为两个处理器使用变址I/O存储器。图6-1是处理器和M6800设备之间连接操作的流程图。
Motorola’s M6800 peripheral expansion cable is directly compatible with the MC68010. Particularly useful for these devices are: MC6821 Peripheral Interface Adapters MC6840 Programmable Timing Module MC6843 Soft Disk Controller MC6845 CRT Controller MC6850 Asynchronous Communication Interface Adapter MG6852 Synchronous Serial Data Adapter MC6854 Advanced Data Link Controller MC68488 Universal Interface Adapter To connect a synchronous M6800 peripheral to an asynchronous MC68010, the processor modifies its bus cycle to meet the M6800 cycle requirements (whenever the M6800 device address can be detected). This can be done because both processors use indexed I / O memory. Figure 6-1 is a flowchart of the connection between the processor and the M6800 device.