# PCB CA80 small. RCbus. (3 PCBs)

Small system for learning Z80 assembler programming without CP/M.

- **Seller:** [CloneFactory](https://lectronz.com/stores/clonefactory), Niepruszewo, Poland
- **Price:** €9.90 (EUR, before shipping and taxes)
- **Availability:** In stock
- **Categories:** Retrocomputing, Prototyping
- **Product page:** https://lectronz.com/products/pcb-ca80-small

## Links

- [Documentation](https://github.com/ZegarNotAvailable/CloneFactory)
- [Code](https://hackaday.io/project/193977-clone-of-ca80)

## Images

![PCB CA80 small. RCbus. (3 PCBs)](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NDAwMjgsInB1ciI6ImJsb2JfaWQifX0=--86b271a581ed647c8df507bb773d4bb49e2e6eba/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/CA80-CPU-RCbus.jpg)
![PCB CA80 small. RCbus. (3 PCBs)](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NDAwMzIsInB1ciI6ImJsb2JfaWQifX0=--6202f6e8bb4522b76f11d67ac75294ba1c6c2255/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/CA80-SYS-IO-RCbus.jpg)
![PCB CA80 small. RCbus. (3 PCBs)](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NDAwMzYsInB1ciI6ImJsb2JfaWQifX0=--995d6a9539f13a2f799347a7f0e28d08542fc86a/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/CA80-MIK89-CLK.jpg)
![PCB CA80 small. RCbus. (3 PCBs)](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NDAwNDAsInB1ciI6ImJsb2JfaWQifX0=--4a621bd9a5d9c3244b380c8baa3afdf6b8434ba7/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/PCB-class.jpg)
![PCB CA80 small. RCbus. (3 PCBs)](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NDAwNDQsInB1ciI6ImJsb2JfaWQifX0=--d3fa6f3a33af6cd3d22efa59ee5197ef3960da1f/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/CA80-RCbus-FL.jpg)

## Description

# CA80
Computer compatible with the software of the best Polish educational computer of the 1980s and 1990s. 
## Hardware
The computer consists of RC80 standard modules. 
<iframe>https://youtu.be/DX81GWKvyLs</iframe>

### CA80-CPU module.
Includes processor and memory.

### CA80-SYS-I/O module.
Contains system interfaces: 
- keyboard,
- display,
- and tape recorder.

### MIK89 module.
The original only included the i8255 and Z80 CTC. 
- CLK was originally 4 MHz.
- NMI is the computer's most important signal. In the original it was 500 Hz and that's what it should always be.
 <iframe>https://www.youtube.com/watch?v=amFPMQ4f2Og</iframe>.


## Shipping policy

The products can be shipped to any European Union country. Please request the shipping cost if your destination is not listed.