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一、系统概述本软盘机系统是由Mic—85机、iSBC208控制板及3.5时双面、倍密度驱动器组成。85机与208控制板的连接通过少量的硬件便可完成。85机和208控制板的接口主要由数据总线、地址总线、控制总线组成,它除了具有控制指令、状态指令的收发功能外,还有磁盘与内存之间的数据传送功能。iSBC208板和3.5时驱动器间用3M3414电缆相连,内有驱动器选择线、盘控信号线、状态信号线及数据线,由图1所示。
First, the system overview The floppy disk system is composed of Mic-85 machine, iSBC208 control panel and 3.5 double-sided, double density drive. 85 machine and 208 control panel through a small amount of hardware can be completed. 85 machine and 208 control panel interface mainly by the data bus, address bus, control bus, which in addition to control commands, send and receive functions of the status command, there is data transfer between the disk and memory. The iSBC208 board is connected to the 3.5-inch drive with a 3M3414 cable. There are driver selection lines, disk control signal lines, status signal lines, and data lines, as shown in Figure 1.