Reference Documents

Y Ddraig reference info

This page contains a collection of datasheets and programming documents for some of the key components of Y Ddraig’s design.

Y Ddraig main board

Video controllers

Texas Instruments TMS9918

Yamaha V9958

The V9958 datasheet only contains differences to the V9938 so both are needed to get a full understanding of the V9958.

Yamaha V9990

Audio Devices

Ethernet Controller

Floppy Drive Controller