This prototyping and signal breakout module can be used to breakout signals to an external prototype or it can host a complete prototype built on the module. The module includes very flexible address decoding which is easily configured with jumpers. This avoids the need to hand wire an address decoding circuit for your prototype.

As a breakout module it provides easy access to all bus signals as well as configurable device enable, device write, device read and interrupt acknowledge signals.

The input/output device address is selected with eight jumpers. Each jumper allows the required state of A1 to A7 and /M1 to be set for high, low or don’t care. Don’t care means the signal can be either high or low. A0 does not have a jumper and is always wired as don’t care. The tightest address decoding is thus two input/output addresses.

Documentation

The documentation can be found at www.smallcomputercentral.com

Compatibility

This module conforms fully to the RCBus specification v1.0 and thus supports RCBus-2014, RCBus-Z80, RCBus-68xx and RCBus-9995.

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.

All the integrated circuits in this kit are new parts from major distributors in the UK or USA.

Printed Circuit Board

The printed circuit board is available on its own here.

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.