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请教XINTF的数据总线宽度



(1)我想把XINTF的数据总线定义为32bit,外扩一片RAM,一片FPGA,其中,RAM只用低16bit、zone7,FPGA用32bit、zone6,可以吗?

(2)如果用zone0,只用12bit地址,而外部接口有20位地址,13bit~19bit可做GPIO吗

(3)片上ADC不用,是否只要把ADC控制寄存器3的7~5bit设为0即可关闭,所有ADC相关引脚都不用接(包括电源)