The module has the following features:

• 128k byte RAM memory
• 128k byte FLASH ROM memory
• Designed for use with Z80 CPU
• RAM divided into two 64k byte banks
• RAM bank selected by software
• ROM divided in four 32k byte banks
• ROM bank selected by software or jumpers
• Supports paging of ROM/RAM in lower 32k
• Suitable memory for CP/M 2
• Supplied with Small Computer Monitor in ROM
• SCM includes CP/M loader from Compact Flash
• Two software controlled LEDs
• Compatible with RCBus-Z80 and RCBus-2014

This module provides all the memory required to run CP/M 2.2 and is compatible with common RCBus CP/M distributions. A Compact Flash interface and card is also required to run CP/M, together with a processor, clock and serial port.

This module is not suitable for running RomWBW.

Documentation

The documentation can be found at www.smallcomputercentral.com

Compatibility

This module conforms to the RCBus specification v1.0 for RCBus-2014 and RCBus-Z80.

The RCBus specification includes RCBus-2014 (both RC2014 standard 40-pin bus and RC2014 enhanced 60-pin bus) and also the full 80-pin RCBus. The 80-pin RCBus provides support for advanced Z80 features, such as the interrupt daisy-chain, as well as support for other processor families.

The Kit

This kit includes all the components needed to make the module, as shown in the first picture. Other modules and backplanes shown in the pictures are not included. You will require tools, solder, and cleaning materials to assemble this kit.

Printed Circuit Board

The printed circuit board is available on its own here.

Complete Systems

If you are looking for a complete system the following products might be appropriate.

• SC126 RCBus-80pin Z180 RomWBW CP/M Motherboard
• SC720 RCBus-80pin Z80 RomWBW CP/M Motherboard
• SC791 RCBus-80pin Z80 RomWBW CP/M Computer
• SC792 RCBus-80pin Z180 RomWBW CP/M Computer
• SC114 RCBus-40pin Z80 SCM & BASIC Motherboard
• SC131 Pocket-sized Z180 RomWBW CP/M computer

Notes

• This product is supplied as a kit of parts that require assembly.
• It is your responsibility to pay any import duty or taxes charged by your home country.
• This product is designed for hobby use and is not suitable for industrial, commercial or safety-critical applications.