资 源 简 介
计算机要想访问HD61 202。必须
首先读取状态字寄存器的内容。主要是
要判别状态宇中的 Busy”标志；在
“Busy”标志表示为O时。计算机方可
访问HD61202。-Computer to visit the HD61 202. Status word must first register to read the content. The main building is to determine the status Busy " sign in" Busy " when the sign is expressed as O. Computer may visit HD61202.
