OPTi ChromaCast 82C205 Manuals

Manuals and User Guides for OPTi ChromaCast 82C205. We have 1 OPTi ChromaCast 82C205 manual available for free PDF download: Preliminary Programmer’s Manual

OPTi ChromaCast 82C205 Preliminary Programmer’s Manual

OPTi ChromaCast 82C205 Preliminary Programmer’s Manual (68 pages)

LCD Monitor Controller

Brand: OPTi | Category: Controller | Size: 0 MB

Table of Contents

Table of Contents
3
Introduction

9
- Nomenclature
  10
Choosing Chromacast 82C205 Hardware Configuration

11
Configuring Chromacast 82C205 for a Specific Panel

11
- Display Crtc Programming
  12
- Display Timing Waveforms
  16
Vga Video Input Interface

19
Dither

25
- Scaling
  25
- Fine Tuning the Scalers
  27
- Using the Anti-Alias Filter
  28
- Centering
  29
- How the Display Window Affects the Scaler
  29
Setting the Panel Window Register Without "Centering

29
Contrast and Brightness Adjustment

31
- Digital Contrast
  31
- Digital Brightness
  31
The on Screen Display

33
Memory Configuration and Allocation

35
- Bypassing the Memory Subsystem
  35
- Configuring the Dram Interface
  35
- Dram Buffer Allocation
  37
  - Allocating the DRAM Space to each Buffer
    37
  - VGA Frame Buffer
    38
  - TV Frame Buffers
    38
  - OSD Buffer
    39
  - Display Read out from Frame Buffers
    39
  - CPU Scratch RAM
    40
Testing and Debugging

41
- Internal Test Patterns
  41
- Software Resets and Disables
  41
- Revision Number
  42
- Fifo Status
  42
- Signature Analyzers
  42
- Cpu Memory Read Buffer
  42
- Memory Subsystem Status
  43
- Miscellaneous
  43
Tv Mode Setup

45
Cpu Interface

49
Power Management for Chromacast 82C205

53
Appendix A: Example Register Initialization Values

57
Appendix B: Common Vga Timing Values

59
Appendix C: Vclk2 Pll M & N Values

61
Appendix D: Chromacast Osd (On-Screen Display) User's Guide

65
- Enabling Osd
  65
- Supported Functions
  65
  - Front Panel Input Buttons Description
    65
- Reset
  65
- Select
  65
- Adjust
  65
- Mode
  65
- Reset Button
  65
- Mode Button
  65
- Description of Supported Icons
  66
  - Contrast Icon
    66
  - Brightness Icon
    66
  - Horizontal Position Icon
    66
  - Horizontal Screen Size Icon
    66
  - Vertical Position Icon
    66
  - Vertical Screen Size Icon
    66
  - Focus Icon
    66
  - Opti Icon
    66
  - Recall Icon
    67
  - USER Recall Mode
    67
  - Factory Recall Mode
    67
  - VGA or TV Input Select Mode Icon
    67
  - Exit Menu
    67

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