資料中描述PS腳的功能如下,這是一個輸入腳,用來切換模式.可是外部應該給它一個什么信號?接CPU吧,好像不用,CPU是通過I2C口讀寄存器來獲取它的信息.應該聯到那?


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