Serial port module using a 68B50 ACIA designed for the RCBus/RC2014 bus
Designed by Stephen C Cousins in United Kingdom
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An alternative design is also available: SC705 This is a low-profile serial port module using a 68B50 ACIA, designed for the RCBus and RC2014 bus. This serial module has a number of advantages over …
Read More…An alternative design is also available: SC705
This is a low-profile serial port module using a 68B50 ACIA, designed for the RCBus and RC2014 bus.
This serial module has a number of advantages over the standard RC2014 module. It has tight address decoding, flexible address selection, hardware flow control in both directions, and its own clock. Having its own clock makes it independent of the CPU clock speed, allowing it to be used with faster (or slower) processors. In addition, the serial signals can be isolated from the RC2014 bus, via jumpers, allowing several of these modules to be connected to the same backplane.
The main features of this design are:
The documentation can be found at www.scc.me.uk or by following the link below.
This module conforms to the RCBus specification v1.0 for RCBus-2014 standard 40-pin long modules.
The printed circuit board outline conforms to the RC2014 standard for low profile modules.
The module is compatible with all RC2014 backplanes, all RCBus-2014 backplanes (RC2014 compatible including SC100 series) and all full RCBus 80-pin backplanes (including SC700 series).
A similar design SC705 is available in the larger module form factor with a double row bus connector. It is compatible with the RCBus-Z80, RCBus-2014 (RC2014 standard bus and enhanced bus) and RCBus-68xx specifications.
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.
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.
The printed circuit board is available on its own here.
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EU countries: Please note Tindie does not collect VAT. You will be charged VAT and a handling fee by your government when the parcel arrives in your country.
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David | Nov. 11, 2023
Nick | Feb. 8, 2022
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