端口0也是复低位地址和在利用外部程序和数据存储器的数据总线。

Port 0 is also the multiplexed low-order address and data bus during access to external program and data memory.

youdao

端口0也是复低位地址和在利用外部程序和数据存储器的数据总线。

Port 0 is also the multiplexed low-order address and data bus during access to external program and data memory.

youdao