DM388的手册中Table 3-20. GPMC Terminal Functions中GPMC_A[24]对应了3个管脚,AC3, AE3, Y11。并且3个管脚都对应mode=02的情况。
请问同一信号对应3个管脚是为什么?他们之间有什么区别?
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Li,
引脚的复用功能很多,为了保证功能不冲突,提供了多种选择。在功能不冲突的情况下,布线上也可以考虑选择方便布线的引脚。