Sega OutRun hardware

Sega OutRun hardware
Manufacturer: Sega
Release Date RRP Code

Sega OutRun hardware is an arcade system created by Sega in 1986, and was first used for the driving game OutRun. It is a successor to 1985's Sega Hang-On hardware, making it the second in Sega's Super Scaler series of pseudo-3D arcade hardware. It was succeeded by Sega X Board in 1987.

Sega OutRun hardware, like Hang-On Hardware, has specifications similar to those of the System 16, with the addition of a second 68000 processor and a separate video board which allowed for an extra graphics layer for the road and sprite scaling graphics. OutRun Hardware can do everything Hang-On Hardware can do, but its processors are clocked higher (allowing for quicker calculations) and the board can draw two roads (Hang-On Hardware can only draw one). At the time, OutRun Hardware was a very expensive arcade board, with arcade operators advised to charge twice as many credits than for regular arcade machines.

Only four games made use of the hardware, all of which are driving games. Realistically however, only OutRun and Turbo OutRun are true OutRun Hardware games - the other two were also released for Hang-On Hardware and are mostly identical in both forms.

Technical Specifications

• Main CPU: 2× Motorola 68000 @ 12.5 MHz (16-bit & 32-bit instructions @ 4.375 MIPS)
• Sound CPU: Zilog Z80 @ 4 MHz (8-bit & 16-bit instructions @ 0.58 MIPS)
• Sound chips:
  • FM synthesis chip: Yamaha YM2151 @ 4 MHz (8 FM channels)
  • PCM chip: SegaPCM (315-5218) @ 4 MHz (stereo output, 16 PCM channels, 12-bit audio, 31.25 kHz sampling rate)
• GPU: Sega Super Scaler chipset
  • Graphics board: Sega 837-6064 / 171-5377 VIDEO Board @ 25.1748 MHz (315-5197 Sega Custom Tilemap Generator, 315-5211 Sega Custom Sprite Generator, 315-5242 Sega Custom Color Encoder)
  • Road graphics chips: 315-5155 Sega Road Bit Extraction, 315-5222 Signetics PLS153N Road Mixing
• Video resolution: 320×224 (display), 400×262 (overscan), progressive scan
• Refresh rate: 60.0543 Hz (V-sync)
• Frame rate: 30 frames per second
• Color palette: 98,304
  • Sega's 16-bit arcade color palette: 15-bit RGB high color depth (32,768 colors) and 1-bit shadow & highlight that triples up to 98,304 colors.
• Colors on screen: 12,288
• Graphical planes:
  • 2 tilemap layers: System 16B tilemap system, row & column scrolling, parallax scrolling
  • 1 text layer
  • 1 sprite layer: Hardware sprite-scaling/zooming
  • 1 road layer: Can draw 2 roads at once, 512×256 pixels each, tiled bitmaps
  • Translucent shadows
• Sprite capabilities: Framebuffered sprites with zooming capabilities, 128 on-screen sprites per frame, thousands of sprites scaled per second, 16 colors per sprite
• Sprite pixels/texels: 25.1748 MHz video clock cycles (60.0543 Hz refresh rate), 419,199 pixels/texels per screen refresh (262 scanlines), 1600 sprite pixels/texels per scanline, 128 sprites per scanline

Gallery

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  CPU board (top)

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  CPU board (bottom)

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  Video board (top)

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  Video board (bottom)

List of Games

• OutRun (1986)
• Super Hang-On (1987)
• Turbo OutRun (1989)
• Limited Edition Hang-On (1991)

Sega arcade boards
Originating in arcades
77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 VIC Dual G80 Zaxxon VCO Object System 1 LaserDisc Appoooh Hang-On System 2 System 16 OutRun Gigas X Board Y Board System 24 System 18 System 32 Model 1 Model 2 H1 Board Model 3
Console-based hardware
84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 SG-1000 System E System C Mega-Tech System Mega Play Sega Titan Video NAOMI Hikaru NAOMI 2 Atomiswave System SP Chihiro Triforce
PC-based hardware
05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Lindbergh Europa-R RingEdge RingWide RingEdge 2 Nu Nu 1.1 Nu 2 ALLS