Poorly scanned datasheets ruin these. A better PDF has zoomable vector diagrams showing:
Look for “PM1_STS” – the power management status register. A good datasheet will tell you exactly which bit indicates a lid-close event. wpce773la0dg datasheet pdf better
The is a highly specialized Embedded Controller (EC) and Low Pin Count (LPC) Input/Output (I/O) chip originally developed by Winbond Electronics Corporation (with certain product lines and assets later managed under Nuvoton Technology Corporation America ). Commonly used as a "Super I/O" or system management controller in laptop motherboards—such as legacy Intel Cantiga/Penryn architectures by Wistron—this integrated circuit (IC) is essential for system initialization, power sequencing, and hardware monitoring. Poorly scanned datasheets ruin these
Once you find a good base PDF, make it for your personal use: The is a highly specialized Embedded Controller (EC)
: Handles power sequencing (turning the laptop on/off), thermal monitoring, and fan control.