User`s guide

2. DESIGN OVERVIEW

This section provides an overview of the REMEMOrizer design and functionality. As a User Guide,

this document is not intended to give the reader detailed instruction on the assembly and

programming of the REMEMORIZER hardware. It is assumed that the reader already has a working

REMEMOrizer; if this is not the case, full instruction for building one can be found on the web site.

The heart of REMEMOrizer is a field-programmable gate array (FPGA), the Xilinx Spartan-3E, built into

an OHO-Elektronik GODIL (or good old DIL, where DIL is dual in-line) electronic programmable logic

module. Full details of the GODIL are available on the trenz electronic website, http://www.trenz-

electronic.de/products/fpga-boards/oho-elektronik.html.

The GODIL executes the complex logic functions and

is interfaced with an SD card reader module which

acts as an emulated floppy disk, a 512KB static RAM

module and supplies the VGA output from the

emulated 80 column card.

ARDWARE

REMEMOrizer includes emulation of the following hardware :-

 Memory

 Cassette tape

 Floppy Disc Controllers

 80 column card

 Sound

The remainder of this section discusses the hardware emulation in some detail, however, an in depth

knowledge of the inner workings of REMEMOrizer are not required before the user can install and

use it. You may choose to skip this section and head straight to Chapter 3 which discusses

REMEMOrizer installation.

Please ensure you have read and understood Chapter 3, Installation, before attempting to

install and use REMEMOrizer, serious damage could occur to your MTX and/or REMEMOrizer

if you configure the jumper settings or ROMs incorrectly!