资料中描述PS脚的功能如下,这是一个输入脚,用来切换模式.可是外部应该给它一个什么信号?接CPU吧,好像不用,CPU是通过I2C口读寄存器来获取它的信息.应该联到那?
PS
Power Switch Sense Input. The device wakes up from sleep mode when it senses the
closure of a switch to VSS on this pin. Pin has an internal 1_A pull-up to VDD.
1148186241.pdf
