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TCA6424芯片 P0 8个port设置为输入输出 都是正常的,P1和P2的都没有变化,请问P0相对于P1和P2有区别吗? 该如何定位?

Other Parts Discussed in Thread: TCA6424, TCA6424A

TCA6424芯片 P0 8个port设置为输入输出 都是正常的,P1和P2的都没有变化,请问P0相对于P1和P2有区别吗? 该如何定位?