SX-I - Z80 Single Board Computer System

The SX-I Z80 Single Board Computer System has been designed to teach students how computers work.

The system is not a copy of early single board computers - this is a modern rethink of what a single board computer system should be. It grows with the student to connect to a PC to aid and demonstrate modern methods of code development.

It starts by takings you through the hardware architecture and a tour of the boards basic operating functions. You are then taken onto machine language programming, the Z80 instruction set, the Monitor program and PC connection.

Supplied Users Manual chapters include:

1. Introduction
2. Construction
3. Circuit Description
4. A Tour of the SX1
5. First Programs
6. Some Theory
7. The Monitor and How To Use It
8. Non-Volatile RAM and PC Connection

NOTE: all software code including the Monitor is supplied with comments.

Features:

• 40 pin IDC expansion socket with all uP lines
• 16 pin IDC expansion socket with 4 I/O ports
• large PCB for easy learning and use (now shipping with the new high quality Version 2 double sided PTH board)
• 6 LED displays for Address/Data output
• 10 year RAM backup with optional DS1213B Smart Socket
• Single stepping in both hardware and software available to debug your programs
• Connects to the Serial port of a PC. Teaches you how to write your programs on a PC, assemble it then download it to the Southern Cross Serial interface PCB, components and Z80 assembler included
• Many fully commented program examples
• Real time, day and date capability with the optional DALLAS DS1216 - Smart Watch IC. Includes RAM backup
• Bit I/O Port with 2 input and 2 output bits available for add-on support kits and other projects
• all CMOS ICs, 8K RAM, 8K EPROM
• 9-15V, AC or DC input
• 20 key hex keypad plus Reset
• 2 hardware speed controls
• DSPTH Board Dimensions: 130x250mm
   

Documentation:

• Full construction details included. All schematics
• Monitor listing published with comments. We do not treat the
• Monitor as 'secret'. We show you how to use it in your own programs by system calls
• Alphabetic and Numeric Instruction Set listing
• Nine pages of program examples
• Download Kit Software/Documentation
   

Optional Add-ons Available:

• SC03 - Relay Board Kit
• SC04 - 8x8 Display Board
• SC07 - DS1213B or C Dallas Smart Socket
• SC08 - DS1216C Dallas Smart Watch
• SC09 - Hardware Technical Manual for SX-I
• SC13 - Relay Board Upgrade
• Power Supply: 9-15Vdc or AC (Order Code PSU443)