VT8601 datasheet(37/144 Pages) ETC1

37 / 144 page

VT8601 Apollo ProMedia

Revision 1.3 September 8, 1999

-31-

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Extended Registers – VGA CRT Controller Indexed

Port

Index Extended CRTC Registers

Default

Acc

3x5

CRT Module Test

3x5

CRT Interlace Control

—

3x5

Arbitration Control 1

3x5

Arbitration Control 2

3x5

Arbitration Control 3

3x5

1D-1E -reserved-

—

3x5

Software Programming

—RW

3x5

Command FIFO

3x5

Linear Addressing

3x5

CPU Latch Readback

—

3x5

-reserved-

—

3x5

VGA Attribute State

—

3x5

RAMDAC RW Timing

3x5

-reserved-

—

3x5

CRT High Order Start

3x5

-reserved-

—

3x5

RAMDAC Mode

3x5

In terface Select

3x5

Horiz. Parameter Overflow

3x5

-reserved-

—

3x5

GE Timing Control

3x5

-reserved-

—

3x5

Performance Tuning

3x5

30-33 -reserved-

—

3x5

35-34 GE IO Linear Address Base

0000

3x5

Graphics / Video Engine Ctrl

3x5

2C Control

3x5

Pixel Bus Mode

3x5

PCI Interface Control

0000000nb RW

3x5

Physical Address Control

3x5

Clock and Tuning

0n000001b RW

3x5

Misc Control

3x5

3D-3F -reserved-

—

3x5

40-50 Hardware Cursor Registers

43-40 HW Cursor Position

—

45-44 HW Cursor Pattern Location

—

47-46 HW Cursor Offset

—

4F-48 HW Cursor Color

—

HW Cursor Control

—

3x5

Bus Grant Termination Ctrl

—

3x5

Shared Frame Buffer Ctrl

000x0010b RW

3x5

53-54 -reserved-

—

3x5

PCI Retry Control

3x5

Display Pre-end Control

3x5

Display Pre-end Fetch Param.

—

3x5

58-5D -reserved-

—

3x5

Capture / ZV Port Control

x0000000b RW

3x5

Test Control

3x5

60-61 -reserved-

—

3x5

Enhancement 0

3x5

Enhancement 1

3x5

DPA Extra

—

3x5

65-7F -reserved-

—

Port

Index Extended CRTC Registers

Default

Acc

3x5

80-BF Video / Capture Engine

81-80 Horiz Scaling Factor (W1)

—RW

83-82 Vert Scaling Factor (W1)

—RW

85-84 -reserved-

—

89-86 Video Window Start (W1)

—RW

8D-8A Video Window End

—

8F-8E Video Display Engine Flag

—

91-90 Row Byte Offset (W1, W1-Y)

—RW

94-92 Vid Start Addr (W1-Y or W1)

—RW

Vid Win Line Buffer Thresh

—

Line Buf Lev Ctl (W1-Y, W1)

—RW

Video Display Engine Flag

—RW

9A-98 Capture Video Start Address

—

Video Display Status

—

Capture Control 1

—

Capture Control 2

—

Capture Control 3

—

Capture Control 4

—

A1-A0 Capture Vertical Total

—

A3-A2 Capture Horizontal Total

—

A5-A4 Capture Vertical Start

—

A7-A6 Capture Vertical End

—

A9-A8 Capture Horizontal Start

—

AB- Capture Horizontal End

—

Capture Vert Sync Pulse

—

Capture Horiz Sync Pulse

—

Capture CRTC Control

—

Capture CRTC Control

—

B1-B0 Capture Horiz Minify Factor

—

B3-B2 Capture Vert Minify Factor

—

B5-B4 DST Pixel Width Count

—

B7-B6 DST Pixel Height Count

—

Capture FIFO Control 1

—

Capture FIFO Control 2

—

BB- Chromakey Comp Data 0 Lo

—

BD- Chromakey Comp Data 0 Hi

—

Capture Control

—

Display Engine Flag 4—

3x5

C0-CF -reserved-

—

3x5

D3-D0 VGA / Digital TV Sync Ctrl 1

—

3x5

D4-FF -reserved-

—

Extended Registers – CRTC Shadow

Port

Index CRTC Shadow Registers

Default

Acc

3x5

Horizontal Total

—

3x5

Horizontal Blanking End

—

3x5

Hoprizontal Retrace Start

—

3x5

Horizontal Retrace End

—

3x5

Vertical Total

—

3x5

Overflow

—

3x5

Vertical Retrace Start

—

3x5

Vertical Retrace End

—

3x5

Vertical Blanking End

—

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