M8 Game Board
The M8 family grew with the addition of the 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 TMS9918A Video Display Processor (VDP) such as used for ColecoVision graphics, a Phillips 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.
I/O Memory Map
I/O Addressing 1)
| 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
Sprite Demo
(click to enlarge)
Here, the M8 Game Board runs a VDP demo with a bouncing sprite over a changing Graphics II mode background.
Return to SST-6809
1)
V2.1