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TMS320F28P650DK: 我发现Ethercat的ESCSS_GPIN_IOPAD_SEL Register不起作用

Part Number: TMS320F28P650DK

你好,

  根据TRM描述,EtherCAT的GPI或GPO功能有的routing到了两个pad上,我测试了GPI3,他分别是GPIO3和GPIO103 PIN,但是为什么这个寄存器不管我配置还是不配置,对于用哪组PAD都没有影响呢?