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AM335系列问题

我现在使用的一款AM335系列,有一个问题想请求帮助;

此芯片的V9引脚和C12引脚在控制液晶屏背光亮灭控制上有区别吗?(背光亮即输出高电平,背光灭即输出低电平)

备注:背光在开机后需要延时约1s后开启。