I was reading the NTSC wiki https://www.nesdev.org/wiki/NTSC_video, i have some noob questions
and it says "The NTSC master clock is 21.47727273 MHz and each PPU pixel lasts four of these clocks" so if we divide by 4 and multiply 52.6μs (visible) we have 282.4 active pixels or if we multiply with 63.5 (all line) we have 341? I mean is that correct?
Later "In standard NTSC, a scanline is 227.5 subcarrier cycles long (equivalent to 341.25 NES pixels)," so that means in 341 pixxel resolution we only have 227.5 samples of color?
"it takes 12 clocks of the color generator mentioned above to complete a color cycle, an NTSC pixel is only 8 clocks wide" does this mean we have to divide the clock by 12 and have 1.789mhz and multiply by 52.6 we have only 94 pixel resolution for color?
and it says "The NTSC master clock is 21.47727273 MHz and each PPU pixel lasts four of these clocks" so if we divide by 4 and multiply 52.6μs (visible) we have 282.4 active pixels or if we multiply with 63.5 (all line) we have 341? I mean is that correct?
Later "In standard NTSC, a scanline is 227.5 subcarrier cycles long (equivalent to 341.25 NES pixels)," so that means in 341 pixxel resolution we only have 227.5 samples of color?
"it takes 12 clocks of the color generator mentioned above to complete a color cycle, an NTSC pixel is only 8 clocks wide" does this mean we have to divide the clock by 12 and have 1.789mhz and multiply by 52.6 we have only 94 pixel resolution for color?
Statistics: Posted by tony_montana — Wed Mar 13, 2024 2:53 am — Replies 4 — Views 190