SPC8104 S-MOS Systems, SPC8104 Datasheet - Page 109

• Manufacturer Part Number: SPC8104
• Description: VGA LCD CONTROLLER
• Manufacturer: S-MOS Systems

SPC8104
1
2
3
4
412-1.0
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
OVERVIEW DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
MAIN BIOS Function SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.1
2.1
2.2
2.3
2.4
3.1
3.2
3.3
4.1
2.4.1
Scope and Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Technology. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
System and System Compatibility . . . . . . . . . . . . . . . . . . . . . . 8
Display support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Video Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Main BIOS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
VESA Extensions . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Sollex Extensions . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Supported BIOS Functions
S-MOS Systems, Inc. • Tel: [phone] • Fax: [phone] • http://www.smos.com
SPC8104F0A BIOS Display Modes . . . . . . . . . . . . . . . . . . . . . . . . .9
Function 00h - Set Video Mode . . . . . . . . . . . . . . . . . . .11
Function 01h - Set Cursor Type . . . . . . . . . . . . . . . . . . .11
Function 02h - Set Cursor Position . . . . . . . . . . . . . . . . . .11
Function 03h - Read Cursor Position . . . . . . . . . . . . . . . . .11
Function 04h - Read Lightpen Position (Unsupported On VGA). . . . . . .12
Function 05h - Select Active Display Page . . . . . . . . . . . . . . .12
Function 06h - Scroll Active Page Up . . . . . . . . . . . . . . . . .12
Function 07h - Scroll Active Page Down . . . . . . . . . . . . . . . .12
Function 08h - Read Character/attribute at Cursor Position . . . . . . . .12
Function 09h - Write Character/attribute at Cursor Position . . . . . . . .13
Function 0Ah - Write Character Only at Cursor Position. . . . . . . . . .13
Function 0Bh - Set Color Palette. . . . . . . . . . . . . . . . . . .13
Function 0Ch - Write Dot. . . . . . . . . . . . . . . . . . . . . .13
Function 0Dh - Read Dot. . . . . . . . . . . . . . . . . . . . . .13
Function 0Eh - Write TTY Character to Active Page . . . . . . . . . . .14
Function 0Fh - Get Current Video State . . . . . . . . . . . . . . . .14
Function 10h - Palette Functions. . . . . . . . . . . . . . . . . . .14
Function 11h - Character Generator Control . . . . . . . . . . . . . .16
Function 12h - Miscellaneous Functions . . . . . . . . . . . . . . . .18
Function 13h - Write String Functions . . . . . . . . . . . . . . . . .19
Function 14h To Function 19h - Null Functions . . . . . . . . . . . . .19
Function 1Ah - Read/Write Display Combination Code . . . . . . . . . .20
Function 1Bh - Return Functionality/State Information . . . . . . . . . .20
Function 1Ch - Save/Restore Video State . . . . . . . . . . . . . . .21
Offsets . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Video Hardware Status . . . . . . . . . . . . . . . . . . . . . .22
Video Data Arena . . . . . . . . . . . . . . . . . . . . . . . .22
DAC and Color Registers . . . . . . . . . . . . . . . . . . . . .23
TABLE OF CONTENTS
. . . . . . . . . . . . . . . . . . . . . . . .11
X15-SP-002-03
BIOS Functional Specification
SP2-3