|CPU||2x Hitachi SH-2 @ 28.6 MHz|
|GPU||32-bit Video Display Processor / 32-bit background and scroll plane Video Display Processor|
|Sound||Yamaha YMF292-F SCSP|
|Predecessor||Sega Model 2|
|Successor||Sega Model 3|
The Sega ST-V (Sega Titan Video game system) was an arcade system board released by Sega in 1995. Departing from their usual process of building custom arcade hardware, Sega's ST-V is essentially identical to the Sega Saturn home console system. The only difference is the media; ST-V used ROM-cartridges instead of CD-ROMs to store games. Being derived from the Saturn hardware, the ST-V was presumably named after the moon Titan, a satellite of Saturn. The majority of ST-V titles were released in Japan only, but a notable exception was the port of Dynamite Deka, which became Die Hard Arcade. Games released for the ST-V includes the arcade version of Virtua Fighter Remix, Golden Axe: The Duel and Final Fight Revenge. The shared hardware between Saturn and ST-V allowed for very "pure" ports for the Saturn console.
Main CPU: 2x Hitachi SH-2 @ 28.6 MHz in a master/slave configuration
Custom Saturn Control Unit (SCU): Fixed-point math coprocessor
VDP1: 32-bit Video Display Processor - handles sprite and polygon drawing. Dual 256 KB framebuffers for rotate and scale effects. Texture mapping, Gouraud shading. 512KB texture RAM
VDP2: 32-bit background and scroll plane Video Display Processor - transparency effects, shadowing, 5 simultaneous scrolling backgrounds and 2 simultaneous rotating playfields
Sound CPU: Motorola 68000 @ 11.45 MHz
Sound Chip: Yamaha YMF292-F SCSP @ 11.3 MHz
Main RAM: 2 MB
Audio RAM: 512KB
ST-V Mod BIOS
The ST-V MODBIOS upon boot up lets the user select the ST-V BIOS region. This allows the user bypass region locked games, and access features and functionality that was limited to particular regions. It is available from Joerg Hartenberger's website.
CN24 Stereo Connector
The ST-V supports stereo via the onboard cn24 connector, the pinout is as follows:-
A simple jst connector can be used to wire up a pair of rca jacks for cabs with a stereo amplifier.
"ST-V IMPROPER GAME INSTALLATION" appears if the cartridge or cartridge slot are dirty. Clean with compressed air or Isopropyl Alcohol and a toothbrush.