# ACPI-specific documentation This section contains documentation about coreboot on ACPI. coreboot dropped backwards support for ACPI 1.0 and is only compatible to ACPI version 2.0 and upwards. - [SSDT UID generation](uid.md) ## GPIO - [GPIO toggling in ACPI AML](gpio.md) ## Windows-specific ACPI documentation - [Windows-specific documentation](windows.md) ## ACPI specification - Useful links - [ACPI Specification 6.5](https://uefi.org/specs/ACPI/6.5/index.html) - [ASL 2.0 Syntax](https://uefi.org/specs/ACPI/6.5/19_ASL_Reference.html#asl-2-0-symbolic-operators-and-expressions) - [Predefined ACPI Names](https://uefi.org/specs/ACPI/6.5/05_ACPI_Software_Programming_Model.html#predefined-acpi-names)