OC65550 HiQV32 Series VGA BIOS OEM Reference Guide Revision 1.4 May 1997 PRELIMINARY Copyright Notice Copyright 1996-97 Chips and Technologies, Inc. ALL RIGHTS RESERVED. This manual is copyrighted by Chips and Technologies, Inc. You may not reproduce, transmit, transcribe, store in a retrieval system, or translate into any language or computer language, in any form or by any means - electronic, mechanical, magnetic, optical, chemical , manual, or otherwise - any part of this publication without the express written permission of Chips and Technologies, Inc. Restricted Rights Legend Use, duplication, or disclosure by the Government is subject to restrictions set forth in subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software clause at 252.277- 7013. Trademark Acknowledgment The CHIPS Logo is registered trademark of Chips and Technologies, Inc. HiQVideo and HiQV32 are trademarks of Chips and Technologies, Inc. RAMDAC is a trademark of Brooktree Corporation. Hercules is a trademark of Hercules Computer Technology. IBM, AT, and PS/2 are registered trademarks of International Business Machines Corporation. Microsoft is a registered trademark of Microsoft Corporation. MS-DOS and Windows are trademarks of Microsoft Corporation. VESA is a registered trademark of Video Electronics Standards Association. VL-Bus is a trademark of Video Electronics Standards Association. All other trademarks are the property of their respective holders. Disclaimer This document is provided for the general information of the customer. Chips and Technologies, Inc., reserves the right to modify the information contained herein as necessary and the customer should ensure that it has the most recent revision of the document. CHIPS makes no warranty for the use of its products and bears no responsibility for any errors which may appear in this document. The customer should be on notice that the field of personal computers is the subject of many patents held by different parties. Customers should ensure that they take appropriate action so that their use of the products does not infringe upon any patents. It is the policy of Chips and Technologies, Inc. to respect the valid patent rights of third parties and not to infringe upon or assist others to infringe upon such rights. i Revision History Revision History Revision Date By Comment 0.1 10/6/95 RN/lc Initial Release 0.2 12/19/95 LC Format changes only. Removed Confidential and NDA markings. Converted to a mirrored margin page format. Renumbered pages to include chapter numbers. 1.0 3/7/96 BB/JC/lc Official Release. Updated and added VESA Extended BGA BIOS functions. Updated and added Hooks for the System BIOS. Updated BMP frames. Updated and merged mode tables. Updated Appendix B. Added numbered sections. 1.1 4/23/96 JC/lc/bjb Added NSTC/PAL Support function and Notify Display Switch Hook. Updated Get F65550 Information function. Added Index. Corrected errors in section numbering. Added section VESA DDC Read and Write Function Hook 5F48h Updated Extended Video Modes tables Expanded Enable Pop-Up 14h Added X, Y Pop-Up Position 14h Updated BMP tables 1.2 5/14/96 JC/bjb Updated BMP section 1.3 9/13/96 JC/bjb Updated BIOS Function Calls and OEM Utilities Update Extended Video Modes 1.4 5/23/97 JC/lc Reorganized chapters, updated 5F14h, 5F50h, 4F00h, functions and 5F36h hook. Revision 1.4 5/23/97 OC65550 Subject to change without notice ii Revision History This page intentionally left blank Revision 1.4 5/23/97 OC65550 Subject to change without notice iii Table of Contents Table of Contents FORWARD Terminology and Conventions..............................................................................................................................F-1 About This Manual...............................................................................................................................................F-1 CHAPTER 1 - INTRODUCTION TO THE VGA BIOS 1.1. VGA BIOS .................................................................................................................................................... 1-1 1.2. Customization Support .................................................................................................................................. 1-1 1.3. BIOS Kits ...................................................................................................................................................... 1-1 1.4. Licensing/Ordering CHIPS’ BIOS Products.................................................................................................. 1-2 1.5. Customer Support .......................................................................................................................................... 1-2 CHAPTER 2 - BIOS FEATURES 2.1. VGA BIOS Compatibility Target .................................................................................................................. 2-1 2.1.1. PS/2 Compatibility.................................................................................................................................. 2-1 2.1.2. AT Compatibility.................................................................................................................................... 2-1 2.2. Multiple Bus Support..................................................................................................................................... 2-1 2.3. Monitor Support ............................................................................................................................................ 2-1 2.4. Display Boot/Display Type Configurations................................................................................................... 2-1 2.5. Video Modes ................................................................................................................................................. 2-2 2.6. Flat Panel Support ......................................................................................................................................... 2-5 2.6.1. Flat Panel BIOS Operation ..................................................................................................................... 2-5 2.6.2. Vertical Compensation ........................................................................................................................... 2-6 2.6.3. Horizontal Compensation ....................................................................................................................... 2-6 2.6.4. Tall Font Support.................................................................................................................................... 2-6 2.6.5. Inverse Video Switching......................................................................................................................... 2-6 2.6.6. Display Switching................................................................................................................................... 2-6 2.6.7. Simultaneous Display ............................................................................................................................. 2-6 2.6.8. Extended Save and Restore..................................................................................................................... 2-7 2.6.9. SMI and Hot Key Support ...................................................................................................................... 2-7 2.6.10. Hardware Pop-Up Window Interface ................................................................................................... 2-8 2.7. PCI Support ................................................................................................................................................... 2-8 2.7.1. Video BIOS ............................................................................................................................................ 2-8 2.7.2. System BIOS .......................................................................................................................................... 2-8 CHAPTER 3 - HARDWARE REQUIREMENTS 3.1. HiQV32 VGA Flat Panel/CRT Controller..................................................................................................3-1 3.2. Color Palette RAMDAC................................................................................................................................ 3-1 3.3. Monitor Detection Circuitry .......................................................................................................................... 3-1 3.4. Pixel Clocks................................................................................................................................................... 3-1 3.5. Memory Clock and Dot Clock....................................................................................................................... 3-1 Revision 1.4 5/23/97 OC65550 Subject to change without notice iv Table of Contents CHAPTER 4 - BIOS FUNCTIONAL CALLS 4.1. Standard VGA BIOS Functions..................................................................................................................... 4-1 4.2. Standard VGA BIOS Function Extensions.................................................................................................... 4-1 00h Set Video Mode......................................................................................................................................... 4-1 0Fh Get Video State ........................................................................................................................................