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TMS570LC4357: 请问LC4357支持电流倒灌(Support reverse current)防护功能吗

Part Number: TMS570LC4357

我们有两块基于4357作为MC的板子,互作备份,只有一块上电,另一块断电,但是两块板子都连在了产品的电路中。

现在发现断电的那块板子IO有微弱的电流倒灌,请问4357支持电流倒灌防护吗,谢谢。