File:Pal video timing.png: Difference between revisions

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