请问一下
1. DLPC3439的中的3DR引脚的作用是什么?
2. 该引脚该如何配置?只要给它输入一个高电平就可以了吗?
3. 对于双控制器来说,是不是主控制器和从控制器的3DR引脚配置相同?
非常感谢
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