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ZoniX – Z80 Based System

ZoniX is my first Z80 based design with ECB and 40 pins expansion bus

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ZoniX is my first Z80 based design with ECB and 40 pins expansion bus. This design aimed to be a retro game console (I hope), for now I will use this platform to learn the designing process and assembly language.

The ZoniX system will be spread across multiple ecb board to help with the development.

Wanted Features
- Z80 CPU ~ 10Mhz
- Use the Z84C90 KIO for Serial/Parallel Counter Timer to reduce chips count
- I/O ports for controllers and keyboard
- VGA output
- Memory map that allow for graphics expansion
- Add an external Bus for expansion in the future
- First 16k of the memory can be switch between ROM and RAM
- External ROM cartridge OR Compact Flash OR even better a SC card ?

ZoniX-Prototype-v0.4_GAL Logic.pdf

ZoniX Prototype v0.4 GAL22v10 schematic

Adobe Portable Document Format - 66.09 kB - 02/09/2021 at 23:32

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ZoniX-Prototype-v0.4_Schematic.pdf

ZoniX Prototype v0.4 schematic

Adobe Portable Document Format - 323.28 kB - 02/09/2021 at 23:32

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ZoniX-Prototype-v0.4_2021-02-09.pdf

ZoniX Prototype v0.4 layers

Adobe Portable Document Format - 1.80 MB - 02/09/2021 at 23:05

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ZoniX-Prototype-v0.4_2021-02-09.zip

ZoniX Prototype v0.4 Gerber file

x-zip-compressed - 313.85 kB - 02/09/2021 at 23:05

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  • 1 × Z84C008-PEC Z80 CPU
  • 1 × SST39SF040-70-4C-PHE Memory ICs / FLASH Memory
  • 1 × AS6C4008 Memory ICs / Static RAM (SRAM)
  • 1 × Z84C90-KIO Zilog KIO PLCC84
  • 2 × GAL22V10 Logic ICs / Programmable Logic: PLDs

View all 18 components

View all 3 project logs

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