Copyright 1996 – Cirrus Logic Inc. xiii November 1996
CL-GD5446 Technical Reference Manual
CONTENTS
C3 BIOS EXTENSIONS .............................................................................C3-2
1. INTRODUCTION .............................................................................................. C3-2
2. CIRRUS LOGIC EXTENSIONS ....................................................................... C3-2
2.1 Function Summary................................................................................ C3-2
2.2 Inquire VGA Type.................................................................................. C3-3
2.3 Inquire BIOS Version Number............................................................... C3-4
2.4 Inquire Cirrus Logic Design Revision Code .......................................... C3-4
2.5 Return Installed Memory....................................................................... C3-4
2.6 Inquire User Options ............................................................................. C3-4
2.7 Query Display Mode Availability............................................................ C3-5
2.8 Read Monitor ID/Type........................................................................... C3-5
2.9 Set Monitor Type................................................................................... C3-5
2.10 Process Generic Fixup Table................................................................ C3-7
2.11 Return Chip Capabilities ....................................................................... C3-7
2.12 Get High Refresh .................................................................................. C3-7
2.13 Set High Refresh................................................................................... C3-7
3. VESA
SUPER VGA STANDARD ...................................................................C3-8
3.1 Goals and Objectives............................................................................ C3-8
3.2 Standard VGA BIOS ............................................................................. C3-9
3.3 Super VGA Mode Numbers .................................................................. C3-9
4. EXTENDED VESA
BIOS FUNCTIONS ........................................................ C3-10
4.1 Status Information............................................................................... C3-10
4.2 Function 00h — Return Super VGA Information................................. C3-10
4.3 Function 01h — Return Super VGA Mode Information....................... C3-12
4.4 Function 02h — Set Super VGA Display Mode .................................. C3-17
4.5 Function 03h — Return Current Display Mode ................................... C3-17
4.6 Function 04h — Save/Restore Super VGA Display State................... C3-17
4.7 Function 05h — CPU Display Memory Window Control..................... C3-18
4.8 Function 06h — Set/Get Logical Scanline Length .............................. C3-19
4.9 Function 07h — Set/Get Display Start ................................................ C3-20
4.10 Function 08h — Set/Get DAC Palette Control .................................... C3-20
4.11 Function 15h — Display Identification Extensions .............................. C3-22
D1 CIRRUS LOGIC BBS, FTP, AND WWW ..............................................D1-2
1. INTRODUCTION .............................................................................................. D1-2
2. FIRST-TIME LOG ON ...................................................................................... D1-3
3. UPGRADED ACCESS ..................................................................................... D1-3
3.1 Using the FTP Server............................................................................ D1-3
3.2 Web Access .......................................................................................... D1-4
E1 GLOSSARY ..........................................................................................E1-2
BIBLIOGRAPHY ......................................................................................................... E1-13