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VRAM Data Bus: Difference between revisions

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The '''VRAM Data Bus''' is the data bus that connects [[S-PPU1]] 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, and VDB0-VDB7 connects to the other VRAM chip, which has VDB going to it.
The '''VRAM Data Bus''' is the data bus that connects [[S-PPU1]] 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, and VDB0-VDB7 connects to the other VRAM chip, which has VDB going to it.


It is drawn in blue in the colorized jwdonal schematic.
It is drawn in blue in the colorized jwdonal schematic.

Revision as of 16:02, 8 July 2023

The VRAM Data Bus is the data bus that connects S-PPU1 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, and VDB0-VDB7 connects to the other VRAM chip, which has VDB going to it.

It is drawn in blue in the colorized jwdonal schematic.