The Memotech Library

MTX Series - Technical Notes

Here you can find a number of what I have called "Technical Notes", a collection of short, and not so short, articles on various items related to the inner workings of the MTX computer and peripherals.

The information is mainly based on my investigation of the MTX, with some valuable input from a couple of the experts in the Facebook MTX500 Group - although any errors & omissions are mine. The information here is as accurate as I believe that I can make it, but please bear in mind that I am a MTX computer user, rather than an expert on any of the topics here, so use you use anything that you find here at your own risk. If you find anything here that you believe to be incorrect, please let me know.

• FDX EMI/RFI Filter
• Memotech Node Ring Connection
• MTX BASIC Variable Storage
• MTX Noddy Language
• MTX Disk Option Details

  • FDX Dual Drive System
  • FDX Single Drive System
  • SDX Upgrade System
  • Hybrid / Special Systems
  • Sourcing Replacement Floppy Drives

• MTX/FDX Video Output

  • FDX 80 Column Card
  • 80 Column Card BIOS Firmware (BOOTCRT.MAC)

• MTX Memory Investigation

  There are links between to the individual memory pages from the Memory Map page that

  the MTX Memory Investigation link takes you to, or, you can go directly to the

  individual pages from the links below :-

   

  • A basic introduction to DRAM
  • The Z80 Interface to DRAM
  • MTX DRAM Operation
  • MTX Series Memory Control - PAL Overview
  • MTX Series ROM Control - ROM Specific PAL Logic
  • MTX Series RAM Control - RAM Specific PAL Logic
  • MTX512S2 RAM Control - Logic Changes for the Series 2

   

• MTX Keyboard & Joysticks
• MTX BASIC Editor Input Scanning
• MTX PSU and Voltage Regulation
• MTX Reset Circuit
• MTX ROM Configuration
• MTX Video RAM - compatible replacements
• The Memotech Speculator
• Transferring Files between Memotech disks and PC