What computers used the Z80?
The Z80 ended up in thousands of products, including the Osborne I (the first portable, or “luggable,” computer), the KayPro II, the Radio Shack TRS-80, and MSX home computers, as well as printers, fax machines, photocopiers, modems, and satellites. Zilog still makes the Z80, which is used in some embedded systems.
What is a Z80 computer?
The Zilog Z80 is a software-compatible extension and enhancement of the Intel 8080 and, like it, was mainly aimed at embedded systems. Although used in that role, the Z80 also became one of the most widely used CPUs in desktop computers and home computers from the 1970s to the mid-1980s.
How can I make my own processor?
No, you won’t be able to make a modern PC and processor at home. These chips take millions of man-hours to design, and are made in factories that cost literal billions to set up. Modern semiconductor manufacturing is almost absurd in this regard, given how complex chip-making has become.
What is a Z80 processor?
In the process, we’ll learn how it works and how to program it! The Z80 processor was designed by Zilog (led by Federico Faggin) and first hit the shelves in 1976. It was a direct competitor against the popular Intel processors, offering both compatibility with Intel systems and also more functionality.
What are the output pins on a Z80?
These pins are RD, WR, MREQ, and IORQ with all of these pins being outputs. The Z80 can access either RAM (memory) or IO devices (e.g. keyboard), and this selection is made by driving MREQ or IORQ low (0V).
How many bits can a Z80 read and write?
Assuming that you understand the topic list above, let’s get started with the Z80 IC, itself. The Z80 processor is an 8-bit CPU with an 8-bit data bus and a 16-bit address bus. This means that the Z80 can read or write up to 8 bits at a time while being able to access up to 65536 individual locations by using the address bus.
What is the best construction method for a Z80 project?
Z80 projects are usually very difficult and prone to error which is why it is advised that a prototyping construction method is used. For example, stripboard and breadboard are ideal construction methods whereas matrix board and PCBs are not.
