SiS300 2D/3D/Video/DVD Accelerator
Preliminary V0.3 March 23, 1999
i
Silicon Integrated Systems Corporation
Content
1
SiS300 AGP 4X/2X 128-bit 2D/3D/Video/DVD Graphics Accelerator................. 1
1.1
Introduction ................................................................................................. 1
1.2
SiS300 Features ......................................................................................... 2
1.3
SiS300 Block Diagram ................................................................................ 9
2
SiS300 Description .......................................................................................... 10
2.1
2D Graphics Engine .................................................................................. 10
2.2
3D Accelerator .......................................................................................... 11
2.3
Digital Video Interface ............................................................................... 13
2.4
MPEG-2 Motion Compensation................................................................. 13
2.5
Video Accelerator...................................................................................... 14
2.6
AGP/PCI Bus Interface ............................................................................. 15
2.7
Display Memory Controller ........................................................................ 15
2.8
Other Function Blocks............................................................................... 16
2.8.1
Attribute Controller.............................................................................. 16
2.8.2
CRT Controller.................................................................................... 16
2.8.3
CRT FIFO ........................................................................................... 16
2.8.4
DDC Controller ................................................................................... 16
2.8.5
DPMS ................................................................................................. 16
2.8.6
Graphics Controller............................................................................. 16
2.8.7
Graphics & Video RAMDAC................................................................ 16
2.8.8
Read-ahead Cache............................................................................. 17
2.8.9
Post Write Buffer................................................................................. 17
2.8.10 Internal Triple-Clock Synthesizer ........................................................ 17
2.8.11 Compatibility ....................................................................................... 18
2.8.12 Process and Supply Voltages ............................................................. 18
2.8.13 Software Support ................................................................................ 18
3
Mode Tables.................................................................................................... 20
3.1
Standard VGA Modes ............................................................................... 20
3.2
Low Resolution Modes.............................................................................. 28
4
SiS300 Pin List and Assignment...................................................................... 36
5
SiS300 Configuration Definitions Hardware Trap list ....................................... 41
5.1
General Registers ..................................................................................... 42
5.1.1
Miscellaneous Output Registers ......................................................... 42
5.1.2
Feature Control Register..................................................................... 43