VT8601 Via, VT8601 Datasheet - Page 5

• Manufacturer Part Number: VT8601
• Description: Slot-1 / Socket-370 PCI North Bridge
• Manufacturer: Via

FUNCTIONAL DESCRIPTIONS ................................................................................................................................................ 135
ELECTRICAL SPECIFICATIONS............................................................................................................................................. 137
MECHANICAL SPECIFICATIONS ........................................................................................................................................... 138
Revision 1.3 September 8, 1999
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DC C
AC T
YSTEM
BSOLUTE
RAPHICS
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VGA Registers....................................................................................................................................................................... 70
VGA Extended Registers...................................................................................................................................................... 74
3D Graphics Engine Registers ........................................................................................................................................... 106
Span Engine......................................................................................................................................................................... 112
Graphics Engine Core ........................................................................................................................................................ 113
DFP Interface Configuration............................................................................................................................................. 135
Power Management States................................................................................................................................................. 136
Power Management Clock Control................................................................................................................................... 136
Power Management Registers ........................................................................................................................................... 136
IMING
:H &
:H &R R Q Q Q Q HFW HFW
HARACTERISTICS
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 – 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
Operational Concept ........................................................................................................................................................................... 106
Drawing............................................................................................................................................................................................... 107
Geometry Primitives............................................................................................................................................................................ 108
Synchronization .................................................................................................................................................................................. 111
Functional Blocks ............................................................................................................................................................................... 111
Bus Interface ....................................................................................................................................................................................... 111
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
C
ONFIGURATION
C
M
S
ONTROLLER
AXIMUM
PECIFICATIONS
R
.............................................................................................................................................................. 137
ATINGS
P
......................................................................................................................................................... 135
OWER
.................................................................................................................................................... 137
............................................................................................................................................... 137
M
ANAGEMENT
................................................................................................................... 136
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