Similarly, whenever the processor develops an instruction address, the low-order two bits are zero.
同样，只要处理器利用指令地址，低阶的两位就为零。
Port 0 is also the multiplexed low-order address and data bus during access to external program and data memory.
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.
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。
应用推荐