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DSP与FPGA连接,寻址空间需求小,能否把XA19-XA8作为普通IO?



DSP与FPGA并行连接,由于交换数据的空间很小,8位地址线足够了。

那么能否只连接XA7-XA0,把XA19-XA8作为普通IO使用?