Compaq iPAQ Internet Device Manual De Usuario
Technical Reference Guide
Compaq iPAQ Family of Internet Devices
First Edition - March 2000
8-1
Chapter 8
BIOS ROM
BIOS ROM
8.
Chapter 8 BIOS ROM
8.1 INTRODUCTION
The Compaq iPAQ Internet Device uses Compaq BIOS firmware loaded into the 82802 FWH
component. The BIOS ROM includes such functions as Power-On Self Test (POST), PCI device
initialization, Plug ‘n Play support, power management activities, and Setup. This chapter
includes the following topics:
component. The BIOS ROM includes such functions as Power-On Self Test (POST), PCI device
initialization, Plug ‘n Play support, power management activities, and Setup. This chapter
includes the following topics:
♦ Boot/reset functions (8.2)
page 8-2
♦ Memory detection and configuration (8.3)
page 8-11
♦ PnP support (8.5)
page 8-12
♦ Power management functions (8.6)
page 8-15
♦ USB legacy support (8.7)
page 8-17
♦ BIOS upgrading (8.8)
page 8-18
The firmware contained in the BIOS ROM supports the following operating systems and
specifications:
specifications:
♦ DOS 6.2
♦ Windows for Workgroups 3.11
♦ Windows 95
♦ Windows 98
♦ Windows NT 3.5 and 4.0
♦ OS/2 ver 2.1
♦ OS/2 Warp
♦ SCO Unix
♦ DMI 2.1
♦ Intel Wired for Management (WfM) ver. 2.2
♦ SMBIOS 2.3.1
♦ Alert-On-LAN (AOL)
♦ Wake-On-LAN (WOL)
♦ ACPI/WHIIG and OnNow
♦ APM 1.2
♦ Phoenix PMM
♦ PC98/99 and NetPC
The microprocessor accesses the BIOS ROM as a 128-KB block from E0000h to FFFFFh. The
BIOS data is shadowed in a 64-KB block in the upper memory area. The BIOS segments are
dynamically paged in and out of the 64-KB block as they are needed.
BIOS data is shadowed in a 64-KB block in the upper memory area. The BIOS segments are
dynamically paged in and out of the 64-KB block as they are needed.
NOTE:
This chapter describes BIOS in general and focuses only on aspects of BIOS
unique to this particular system..