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R6549 - Color Video Display Generator

Description

The Rockwell R6549 Color Video Display Generator (CVDG) integrates video raster control; color lookup table (LUT) update and access; color generation and display refresh; teletext data DMA addressing, data routing and handshake; dynamic RAM (DRAM) control and refresh; and MPu/CVDG/DMA access to DRAM

Features

  • High performance video generator - 2:I or 1:1 interlace - Analog red, green, blue (RGB) outputs - 16 levels per color plus blanking - 4096 color combinations - RS-170 sync and color subcarrier generation - 16 entry color look-up table (LUT) - RS-170 composite sync output with equalization and serration pulses - Internal/external video synchronization - Color subcarrier generation with line, field and pixel phase lock - Compatible with MC1377 color encoder.
  • Videotex (VTX)lTelet.

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Datasheet Details

Part number R6549
Manufacturer Rockwell
File Size 1.88 MB
Description Color Video Display Generator
Datasheet download datasheet R6549 Datasheet

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'1'Rockwell R6549 R6549 Color Video Display Generator (CVDG) PRELIMINARY DESCRIPTION The Rockwell R6549 Color Video Display Generator (CVDG) integrates video raster control; color lookup table (LUT) update and access; color generation and display refresh; teletext data DMA addressing, data routing and handshake; dynamic RAM (DRAM) control and refresh; and MPu/CVDG/DMA access to DRAM into a single device. Internal horizontal and vertical state machines generate video synchronization signals and control access of video color data from DRAM. A 16-entry color lookup table (LUT) supports 4-bit encoded color levels for red, green and blue (RGB) colors allowing 4096 color combinations to be generated.
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