VT8601 Apollo ProMedia
Revision 1.3 September 8, 1999
-iii-
Table of Contents
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VGA Registers....................................................................................................................................................................... 70
Attribute Controller Registers (AR) ...................................................................................................................................................... 70
VGA Status / Enable Registers ............................................................................................................................................................. 70
VGA Sequencer Registers (SR) ............................................................................................................................................................ 71
VGA RAMDAC Registers .................................................................................................................................................................... 71
VGA Graphics Controller Registers (GR)............................................................................................................................................. 72
VGA CRT Controller Registers (CR) .................................................................................................................................................. 73
VGA Extended Registers...................................................................................................................................................... 74
VGA Extended Registers – Non-Indexed I/O Ports .............................................................................................................................. 74
VGA Extended Registers – Sequencer Indexed .................................................................................................................................... 75
VGA Extended Registers – Graphics Controller Indexed ..................................................................................................................... 85
VGA Extended Registers – CRT Controller Indexed............................................................................................................................ 91
VGA Extended Registers – CRTC Shadow ........................................................................................................................................ 105
3D Graphics Engine Registers ........................................................................................................................................... 106
Operational Concept ........................................................................................................................................................................... 106
Drawing............................................................................................................................................................................................... 107
Geometry Primitives............................................................................................................................................................................ 108
Synchronization .................................................................................................................................................................................. 111
Functional Blocks ............................................................................................................................................................................... 111
Bus Interface ....................................................................................................................................................................................... 111
Span Engine......................................................................................................................................................................... 112
Graphics Engine Core ........................................................................................................................................................ 113
Graphics Engine Organization ............................................................................................................................................................ 116
Setup Engine Registers ....................................................................................................................................................................... 117
Vertex Registers .................................................................................................................................................................................. 118
Rasterization Engine Registers............................................................................................................................................................ 119
Pixel Engine Registers ........................................................................................................................................................................ 126
Texture Engine Registers .................................................................................................................................................................... 132
Memory Interface Registers ................................................................................................................................................................ 134
Data Port Area..................................................................................................................................................................................... 134
FUNCTIONAL DESCRIPTIONS ................................................................................................................................................ 135
SYSTEM CONFIGURATION ......................................................................................................................................................... 135
DFP Interface Configuration ............................................................................................................................................. 135
GRAPHICS CONTROLLER POWER MANAGEMENT ................................................................................................................... 136
Power Management States................................................................................................................................................. 136
Power Management Clock Control ................................................................................................................................... 136
Power Management Registers ........................................................................................................................................... 136
ELECTRICAL SPECIFICATIONS ............................................................................................................................................. 137
ABSOLUTE MAXIMUM RATINGS ............................................................................................................................................... 137
DC CHARACTERISTICS.............................................................................................................................................................. 137
AC TIMING SPECIFICATIONS .................................................................................................................................................... 137
MECHANICAL SPECIFICATIONS ........................................................................................................................................... 138
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