Exile In Paradise

Stranded on Earth...

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sst-6809:m8_motorino_game_board [2025/05/23 22:23] – robertsst-6809:m8_motorino_game_board [2025/05/28 19:23] (current) – removed robert
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-====== M8 Motorino Game Board ====== 
  
-The M8 family grew with the addition of the M8 Game Board (code name Motorino): 
- 
-{{:sst-6809:sst_and_game_board.png?400|SST-6809 V2.1 with M8 Game Board}} \\ 
-(click to enlarge) 
- 
-The SST-6809 V2.1 board is on the left and the M8 Game Board is on the right. 
- 
-The M8 Game Board combines a TI [[WP>TMS9918A]] Video Display Processor (VDP) such as used for ColecoVision graphics, a Phillips [[WP>SAA1099P]] six-channel sound synthesizer, a Motorola 6850 or Hitachi 6350 serial ACIA port, and dual [[joystick]] inputs on the 1.0 board, or a single [[joystick]] with fire button on the 2.1 board. 
- 
-===== Sprite Demo ===== 
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-{{:sst-6809:vdp09.png?400|M8 Game Board running VDP09 Demo}} \\ 
-(click to enlarge) 
- 
-Here, the M8 Game Board runs a [[https://github.com/KenWillmott/M8-Game-Board/blob/main/vdp.asm|VDP]] demo with a bouncing sprite over a changing Graphics II mode background. 
- 
-===== I/O Memory Map ===== 
- 
-==== V2.1 ==== 
- 
-I/O Addressing 
-^ JP1: 1-2     ^ JP1: 2-3  ^ R/W  ^ IC  ^ 
-| $18-$1B      | $08-$0B  | R/W  | [[TMS9918A]] VDP  | 
-| $1C-$1F      | $0C-$0F  | R/W  | [[MC6821]] PIA  | 
-| PIA Port A   | | R/W  | [[Joystick]] and I/O Expansion  | 
-| PIA Port B   | | W    | [[SAA1099P]] Audio  | 
- 
-Source: [[https://github.com/KenWillmott/M8-Game-Board-V2.1/blob/main/motorino-game.pdf]] 
- 
-==== V2.0 ==== 
- 
-^ I/O Addressing  ^ R/W  ^ IC  ^ 
-| 00-07  | R/W  | [[TMS9918A]]  | 
-| 08-0F  | R    | [[HCT541]]  | 
-| :::    | W    | [[SAA1099P]] A  | 
-| 18-1F  | R    | [[HCT541]]  | 
-| :::    | W    | [[SAA1099P]] B  | 
- 
-Bit 0 of each [[HCT541]] is a read of the corresponding synth's [[DTACK]] pin for polling when using slower commands. 
- 
-==== V1.0 ==== 
- 
-^ I/O Memory Map  ^ R/W  ^ IC  ^ 
-| 00-07  | R/W  | [[TMS9918A]] VDP  | 
-| 08-0F  | R    | [[HCT541]] Joysticks  | 
-| :::    | W    | [[SAA1099P]] Audio  | 
-| 10-1F  | R    | [[MC6850]] ACIA | 
- 
-Bit 0 of each [[HCT541]] is a read of the corresponding synth's [[DTACK]] pin for polling when using slower commands. 
- 
-Source: [[https://github.com/KenWillmott/M8-Game-Board/blob/main/motorino-game.pdf]] 
-===== References ===== 
- 
-[[https://github.com/KenWillmott/M8-Game-Board]] 
- 
-M8 Game Board Wiki:\\ 
-[[https://github.com/KenWillmott/M8-Game-Board/wiki]] 
- 
-Return to [[:SST-6809:]]