假定甲、乙机以方式1进行串行数据通信，其

波特率为1200，时钟6MHz。甲机发送，发送数

据在外部RAM4000~401FH单元中。乙机接收，

并把接收到的数据块首末地址及数据依次存入外部RAM5000H开始的区域中

-Assuming that A, B machine by way of a serial data communication, the baud rate of 1200, the clock 6MHz. A sends the transmission data in an external RAM4000 ~ 401FH unit. B receives and stores the received data block at the end of the first external address and data is sequentially stored in an area that starts RAM5000H