Introduction - Protech Systems BU-2509 User Manual

Chapter 4 AMI BIOS Setup

4-1. INTRODUCTION

The system BU-2509 uses an AMI Aptio BIOS that is stored in the Serial Peripheral
Interface Flash Memory (SPI Flash) and can be updated. The SPI Flash contains the
BIOS Setup program, Power-On Self-Test (POST), the PCI auto-configuration utility,
LAN EEPROM information, and Plug and Play support.
Aptio is AMI's BIOS firmware based on the UEFI (Unified Extensible Firmware
Interface) specifications and the Intel Platform Innovation Framework for EFI. The
UEFI specification defines an interface between the operating system and platform
firmware. The interface consists of data tables that contain platform-related
information, boot service calls, and runtime service calls that are available to the
operating system and its loader. These elements have combined to provide a standard
environment for booting the operating system and running pre-boot applications.
The diagram below shows the Extensible Firmware Interface's location in the software
stack.
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BU-2509 SERIES USER S MANUAL