Difference between revisions of "Sega System 2"

From Sega Retro

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| maker=[[Sega]]
 
| maker=[[Sega]]
 
| processor=[[Zilog Z80]]
 
| processor=[[Zilog Z80]]
| releases={{releases
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| releases={{releasesArcade
| arcade_date_world=1985-09
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| system_date_world=1985-09
 
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** Sound: 32 KB
 
** Sound: 32 KB
 
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==Photo gallery==
 
<gallery>
 
System2 PCB.jpg|PCB
 
</gallery>
 
  
 
==List of games==
 
==List of games==
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* ''[[UFO Senshi Youko Chan]]'' (1988)
 
* ''[[UFO Senshi Youko Chan]]'' (1988)
 
}}
 
}}
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==Photo gallery==
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<gallery>
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System2 PCB.jpg|PCB
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</gallery>
  
 
==References==
 
==References==

Revision as of 22:37, 14 July 2018

System2 PCB.jpg
Sega System 2
Manufacturer: Sega
Release Date RRP Code
Arcade
World
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The Sega System 2 is an arcade platform introduced by Sega in 1985. It is a successor to the Sega System 1, though largely an upgrade, utilising the same Zilog Z80 CPU, sound chips, and Sega graphics chipset. The major upgrades of the System 2 are the addition of a ROM board, faster RAM, and a larger 512×512 background scrolling plane.

The System 2 was supported alongside the System 1, with its last game being released in 1988.

Technical specifications

See Sega System 1 Specifications for details on underlying System 1 specifications.

The following are changes that System 2 made to System 1 specifications.

  • Board composition: Main board + ROM board
  • Tilemap planes: 2 background layers (1 static, 1 scrolling), 8×8 tiles
    • Tilemap sizes: 512×512 for scrolling plane, 256×256 for fixed plane[1]

Memory

  • Memory: 385.5–487.5 KB (100–106 KB main, 251.5–347.5 KB video, 34 KB sound)
  • RAM: 32.5 KB (SRAM)[2]
    • Main: 4 KB
    • Video: 26.5 KB (4 KB video, 2 KB sprite attributes, 1.5 KB sprite line buffers, 2 KB palette, 4 KB collision)
    • Sound: 2 KB
  • ROM: 353–455 KB
    • Main: 96–102 KB
    • Video: 225–321 KB (96 KB tiles, 128–224 KB sprites, 1 KB palette)
    • Sound: 32 KB

List of games

Photo gallery

References


Sega arcade boards
Originating in arcades









Console-based hardware








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PC-based hardware








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