Graphics and Sound Card

A project log for Z80MiniFrame

Minicomputer based on Z80 microprocessor and designed with different cards and backplane bus

Tomeu CapóTomeu Capó 02/05/2020 at 22:050 Comments

Recently design additional board to support output display graphics/text and sound generation. This card uses TMS9918 Video Display Processor and AY-3-8910 Sound Generator. This card have same dimensions like main CPU-IO board and controlled by main TTL decoder address IC.

The graphics VDP design are used similar than and using 32KB Static RAM for video RAM explanied in