Sega Zaxxon hardware

From Sega Retro

ZaxxonHardware.jpg
Sega Zaxxon hardware
Manufacturer: Sega Enterprises, Ltd.
Release Date RRP Code
Arcade (Zaxxon hardware)
JP		 ¥? ?
Arcade (Zaxxon hardware)
US		 $? ?

































Sega Zaxxon hardware is an arcade system created by Sega in 1982, and was first used for the isometric shmup Zaxxon. Like many Sega arcade machines of the time, it used the Zilog Z80 as its CPU.

Technical specifications

Sega Zaxxon specifications

  • Board composition: Main board, Sound board, Graphics board[1]
  • Main CPU: Zilog Z80 @ 3.04125 MHz (8-bit & 16-bit instructions @ 0.441 MIPS)
  • Sound board: Sega G80 Sound Board
  • Graphics board: Sega Zaxxon-VIDEOII / 834-5167 Video Board[1]
  • RAM: 5.25 KB[1]
  • Main: 4 KB (2 KB RAM 1, 2 KB RAM 2)
  • Video: 1.25 KB (1 KB video, 256 bytes sprites)
  • Colors on screen: 256 (palette RAM)
  • Tilemap planes: 2 layers (foreground, background), 8×8 tiles, 4 or 8 colors per tile, tile flipping, vertical/horizontal/diagonal scrolling, isometric perspective[3][1]
  • Sprites: 4 or 8 colors per sprite, sprite flipping, shadows[1][3]
  • Sprite sizes: 8 and 32 heights, widths of 8, 16 and 32 pixels
  • Line buffer: 256 sprite pixels/texels per scanline, 8 (32-width) to 32 (8-width) sprites per scanline

Congo Bongo specifications

Congo Bongo featured the following upgrades in 1983:[1]

  • Additional CPU: Zilog Z80 @ 2 MHz (8-bit & 16-bit instructions @ 0.29 MIPS)
  • Sound board: Sega 834-5168 Sound Board
  • Additional sound chips: 2× SN76496 @ 4 MHz
  • RAM: 11 KB
  • Main: 4 KB (2 KB RAM 1, 2 KB RAM 2)
  • Video: 5 KB (1 KB video, 1 KB color, 3 KB sprites)
  • Sound: 2 KB
  • Colors on screen: 512

List of games

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 https://github.com/mamedev/mame/blob/master/src/mame/drivers/zaxxon.cpp
  2. ↑ https://github.com/mamedev/mame/tree/master/src/mame/drivers/zaxxon.cpp
  3. ↑ 3.0 3.1 https://github.com/mamedev/mame/blob/master/src/mame/video/zaxxon.cpp


Sega arcade boards
Originating in arcades









Console-based hardware








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