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VRAM Data Bus

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The VRAM Data Bus is the data bus that connects S-PPU1 and S-PPU2 to the VRAM chips. It consists of two 8-bit data buses: VDA and VDB.

  • VDA0-VDA7 connects to the VRAM chip which has VAA going to it
  • VDB0-VDB7 connects to the other VRAM chip, which has VDB going to it.

It is drawn in blue in the colorized jwdonal schematic.

See Also

External Links

  1. Figure 2-22-1 on page 2-22-2 of Book I