ZX80 Hardware
This project is based on "ZX80 Homebuilt hardware page" by Grant Searle. First, I've created an emulator to run the original ROM and after I've built a prototype using Wilco's PCB. For more information about Searle's original design access his website.
Features:
Features:
- CPU: Z80 running at 3.25 MHz.
- Storage: Cassette Tapes.
- RAM: 1K Byte (original), 2K Bytes (microdigital/microace) or 32K Bytes (modern clones). Expandable to 64KB.
- ROM: 4K Bytes (ZX80) and 8K Bytes (ZX81), switched off when CP/M active.
- Supports Basic or Forth using a modified ROM.
Basic Schematics:
This is the second page from the assembly manual where Sinclair presents the original schematics of ZX80 Computer.