·( S8-Dev - Technical Documentation )·
[General System Documentation] [Z80 Processor] [Memory System]
[Video] [Sound] [Tape] [Pinouts] [Development Tools] [Miscellaneous]
Contact Omar Cornut (Bock) or Eric Quinn if you have a document to contribute to this section. If you have any technical questions or cannot find the information you need, please post a message on the S8-Dev Forum so you can reach a larger audience. This section is partially outdated and we're willing to reoverhaul it whenever possible. If you need anything that is not available here, please ask.

Documents in bold are those generally known as most up to date or accurate.
General System Documentation

DocumentAuthorDescription

SMS/GG hardware notes (2002/11/12)
 
Charles MacDonald General and very complete documentation about the SMS/GG.
Also see "SMS VDP Documentation" by the same author.

Sega SC-3000 Hardware Notes (2004/07/29)
 
Charles MacDonald Very complete notes on SC-3000 and related systems

Sega Master System Technical Information
 
Richard Talbot-Watkins General and very complete documentation about the SMS

Sega Master System and Game Gear Architecture (1.0)
 
Marat Fayzullin Incomplete but covers quite a few interesting things

Jon's Technical Documentation (1991/11/23)
 
Jon Very old document covering many aspects of the SMS/GG

Super Majik Spiral Crew's Guide to the Sega Master System (0.02)
 
Super Majik Spiral Crew General documentation about the SMS

Game Gear Documentation
 
Unknown Covers video ports, video registers, and inputs ports

Full port 3F and controller port details
 
Asynchronous Forum post regarding SMS port $3F

Mail Extract #1
 
James McKay and Neon Spiral Injector Miscellaneous issues

Sega Game 1000 (SG-1000) Information (Draft)
 
Omar Cornut Stripped down SMS documentation covering only SG-1000 specifics (outdated)

techdoc.txt
 
PolestaR (Jason Starr) Notes on CodeMasters games, Light Phaser, Paddle, 3-D Glasses

Sega Master System Schematics
 
"Gringoz" Sega Master System Schematics

Official SMS/GG documentation
 
Sega The real thing


Z80 Processor

DocumentAuthorDescription

Z80 Family CPU User Manual
 
Zilog Official Z80 User's Manual (Zipped PDF document)

The Undocumented Z80 Documented (0.4)
 
Sean Young Excellent document covering some of the less known Z80 aspects

Zilog Z80 Product Specification
 
Zilog Official Z80 documentation

Zilog Z80 Documents
 
Various Miscellaneous collection of Z80 documents documents


Video

DocumentAuthorDescription

SMS VDP Documentation (2002/11/12)
 
Charles MacDonald Excellent document covering the SMS and GG VDP hardware

TMS9918A Data Sheet
 
Texas Instruments Official specification of the TMS9918a Video Display Processor (VDP)
(used by SG-1000/SC-3000, and in legacy video modes on the Master System)

Portar (1.5)
 
Mayer Very complete MSX documentation (MSX uses a TMS9918 video chip)

TMS9918A Document
 
Sean Young Description of the Texas Instruments TMS9918a Video Display Processor (VDP)

Super Majik Spiral Crew's Guide to using their code (0.00)
 
Super Majik Spiral Crew Primitive documentation regarding the tile format and the palette


Memory System

DocumentAuthorDescription

Sega 315-5208, 315-5235, and 315-5365 Master System Memory Paging Chips
 
S8-Dev Team Description of 315-5208, 315-5235, and 315-5365 paging chips and their use in homemade development cartridges.

Mail Extract #2
 
James McKay Covers paging registers

SMSArch Documentation
 
Eric Quinn Covers memory map and paging registers


Sound

DocumentAuthorDescription

SN79489 notes
 
Maxim Excellent document covering the SN79489/SN76496

YM2413 Application Manual (HTML)
 
Yamaha / Maxim Programmer's manual for the YM2413 sound generator, converted to HTML and with redrawn diagrams

YM2413 Application Manual (PDF scans)
 
Yamaha / Ricardo Bittencourt / HansO Programmer's manual for the YM2413 sound generator, converted to PDF

YM2413 Application Manual (Scans)
 
Yamaha Programmer's manual for the YM2413 sound generator

YM2413 Programmer's Manual (PDF)
 
Yamaha Programmer's manual for the YM2413 sound generator

Project SMS OPLL
 
Leonard Silva de Oliveira Schematics and mail extract about Leonard' successful attempt to adding a YM2413 for his non-Japanese Master System.


SC-3000 Tape

DocumentAuthorDescription

SC-3000 Tape Format Notes
 
Sega Four scanned pages from manual with notes about SC-3000 tape format.


Pinouts

DocumentAuthorDescription

Game Gear Pinouts
 
Unknown Standard GG cartridge pinouts

European - Japanese Master System connector & MasterSystem - GameGear converter
 
Sankichi Export/Japanese SMS pinouts, GG pinouts

SG-1000/SC-3000 pinouts
 
Skyhigh SG-1000/SC-3000 pinouts and mail extracts

SMS Gender Adapter Instructions (v.03)
 
Mike Gordon / Omar Cornut / Mike Cukan Picture showing how to build a simple gender adapter to plug a cartridge on the expansion port. It is especially useful to play export games on a Japanese Master System.

SMSArch Documentation
 
Eric Quinn Include SMS pinouts


Development Tools

DocumentAuthorDescription

SMS Reader
 
Mike Gordon Cartridge reader/writer for 8-bit Sega systems and rewritable cartridges

SMS 512K Flash Memory Cartridge
 
Charles MacDonald Instructions to modify a SMS cartridge to accept a Am29F040 flash memory chip

128k EPROM modification for 315-5208 based SMS cartridges
 
Mike G. Procedure for creating a 1 Megabit re-programmable development cartridge.

Homemade Devcarts, Chapter 1
 
Flavio Morsoletto Introduction to creating homemade SMS development cartridges


Miscellaneous

DocumentAuthorDescription

JavaGear Final Project Report
 
Chris White Final project report submitted by Chris White to his computer science school. Covers the development of the JavaGear emulator.

JavaGear Specification
 
Chris White Original project specification of the JavaGear emulator.

Game Gear Sound Fix Instructions
 
Ky Crout Instructions to fix the sound problem happening on many Sega Game Gear.

Game Gear Sound Fix Instructions (HTML)
 
Ky Crout Instructions to fix the sound problem happening on many Sega Game Gear.
Converted to HTML by Maxim.


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