File:Pal video timing.png: Difference between revisions

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(Reword description; fix hyperlink)
(Persune uploaded a new version of File:Pal video timing.png)
 

Latest revision as of 05:18, 12 April 2023

Summary

A visualization of the PAL PPU's video output signal, using different colors to denote each part of the signal. Based on Ntsc_video_timing.png.

The video output of the PPU is delayed by 1 pixel clock in relation to the working PPU memory. In addition, the active video portion is delayed by another 1 pixel clock. Cycle 0, scanline 0 according to the PPU Frame Timing Diagram is marked by the black pixel.

  • Cyan is the horizontal blanking pulse
  • Dark blue is the "back porch" after HBlank
    • Yellow is the colorburst signal
  • Red is the visible output region, including the left and right border
    • Bright red is where the background and sprites are actually visible
    • Dark red is where the border crops into the active video output
  • Orange is the "front porch" before HBlank
  • Magenta is the vertical blanking pulse
  • Dark green is the surrounding black border, vertical blanking region, and the sync separator

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current05:18, 12 April 2023Thumbnail for version as of 05:18, 12 April 2023341 × 312 (1 KB)Persune (talk | contribs)Added one missing scanline
20:25, 11 April 2023Thumbnail for version as of 20:25, 11 April 2023341 × 311 (1 KB)Persune (talk | contribs)A visualization of the PAL PPU's video output signal, using different colors to denote each part of the signal. Based on File:Ntsc_video_timing.png. The video output of the PPU is delayed by 1 pixel clock. In addition, the active video portion is delayed by another 1 pixel clock. Cycle 0, scanline 0 according to the [https://www.nesdev.org/wiki/File:Ppu.svg PPU Frame Timing Diagram] is marked by the black pixel. * Cyan is the horizontal blanking pulse * Dark blue is the "back porch" aft...

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