# 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)
