NES:NESRGB

The NESRGB is a mod designed by Tim Worthington to improve the video quality of the NES and Famicom.

Some of the following information has been gathered from Tim's website.

Description

An unmodified NES only supports composite and RF (radio frequency) video output. The NESRGB is an internal mod that adds RGB and S-Video video output to the NES and Famicom.

Features

• Generates RGB, S-Video (encoded from RGB), and composite video (encoded from RGB) signals
• No latency (video timing is maintained)
• Built in audio and video amplifiers
• Compatible with NTSC and PAL consoles
• Compatible with NES, Famicom, AV Famicom, and Twin Famicom consoles
• User selectable color palettes
• Upgradable firmware via JTAG programmer

Technical Details

The NESRGB board contains an Altera CPLD (complex programmable logic device) that utilizes the NES's PPU (picture processing unit) and CPU to generate an RGB video signal.