orienhardt/1802-mini-pixie-video

1802-Mini-Pixie-Video

This is the Pixie video card for the 1802/Mini system. It supports the following features:

• Software compatible with CDP1861 Pixie chip
• Composite video output with improved sync signalling
• Uses WAIT to syncronize to processor rather than losing sync
• Processor runs at full speed when video is diabled
• Optionally runs processor at full speed outside display area
• Outputs video levels for 75-ohm or high-impedance inputs
• Requires no programmable components, only common 4000-series CMOS
• Supports group I/O port expansion
• Fixed port address of 1 compatible with VIP and Studio II
• Jumper-selected display field polling bit on EF1-EF4

Gerber files for the PCBs and PDF schematics can be found in Releases.

BOMS and any applicable errata or other notes can be found in notes.

For availability of kits and bare PCBs please see http://madole.net/1802/mini/kits