Namco System 22

Namco System 22

Manufacturer	Namco
Type	Arcade system board
CPU	Motorola 68020 32-bit
Predecessor	Namco System 21
Successor	Namco System 11

The Namco System 22 is the successor to the Namco System 21 arcade system board. It debuted in 1992 with Sim Drive in Japan, ^[1] followed by a worldwide debut in 1993 with Ridge Racer .

The System 22 was designed by Namco. The main CPU provides a scene description to the TR3 graphics processing unit and a bank of DSP chips which perform 3D calculations.

A variant of the system, called the Super System 22, was released in 1995. The hardware was largely similar to the System 22, but with a slightly higher polygon rate and more special effects possible.

System 22 Specifications

• Main CPU: Motorola 68020 32-bit @ 24.576 MHz
• DSP: 2x Texas Instruments TMS32025 @ 49.152 MHz (exact number of DSPs may vary)
• GPU: Namco's in-house developed GPU (Texture Mapping, Real-Time, Real-Visual, Rendering System)
  • Features: Texture mapping, Gouraud shading, transparency effects, depth cueing, 16.7 million colors, 240,000 polygons/second ^[2]
• Sound CPU: Mitsubishi M37702 (System 22 Games) or M37710 (Super System 22 Games) @ 16.384 MHz
• Sound Chip: Namco C352 (32 voices, 4 channels @ 16-bit, support for 8-bit linear or μ-law PCM samples) ^[3]
• + Namco Custom Chips

List of System 22 / Super System 22 Games

Namco System 22 Rave Racer

Namco System22 Time Crisis

Namco Aqua Jet

Name	Year of Release	Notes
Sim Drive	(1992)	Limited release [1] [4]
Ridge Racer	(1993)
Ace Driver	(1994)
Alpine Racer	(1994)
Cyber Commando	(1994)
Ridge Racer 2	(1994)
Ace Driver: Victory Lap	(1995)
Air Combat 22	(1995)
Cyber Cycles	(1995)
Dirt Dash	(1995)
Rave Racer	(1995)
Time Crisis	(1995)
Tokyo Wars	(1996)
Alpine Racer 2	(1996)
Alpine Surfer	(1996)
Aqua Jet	(1996) [5]
Armadillo Racing	(1996)
Prop Cycle	(1996)

References

1. "Sim Drive, Arcade Video game by NAMCO (1992)".
2. "System 16 - Namco System 22 Hardware (Namco)".
3. "mamedev/mame". GitHub. Retrieved 2021-03-19.
4. "SimDrive - Undumped". Archived from the original on 2017-07-29. Retrieved 2014-09-28.
5. "Aqua Jet". GamePro . No. 99. IDG. December 1996. p. 56.

External links

• System 22 at System16 - The Arcade Museum