Panasonic M2

The Panasonic M2 was a video game console design developed by 3DO and then sold to Matsushita.^[1] Initially announced as an add-on chip for the 3DO Interactive Multiplayer with a custom PowerPC microprocessor,^[2][3] it eventually became a standalone console and was exhibited and demonstrated at the 1996 Electronic Entertainment Expo.^[4] Before it could be released, however, Matsushita cancelled the project in mid-1997, unwilling to compete against fellow Japanese electronics giant Sony's PlayStation and Nintendo's N64, both of which had recently had several top-selling games released for them.^[4] The M2 was cancelled so close to release, marketing had already taken place in the form of flyers, and one of its prospected launch titles, WARP's D2, had several gameplay screens in circulation (a different game by WARP using the same name was later released on the Dreamcast).

As with the 3DO Interactive Multiplayer, the M2 hardware was co-designed by Dave Needle and R. J. Mical.^[5] According to Omid Kordestani, a 3DO spokesperson, the M2 could generate 1 million polygons per second with the graphics features turned off and 700,000 polygons per second with the features turned on.^[3]

Development kits and prototypes of the machine became very valuable pieces among collectors. M2's technology was integrated in the multimedia players FZ-21S and FZ-35S, both released in 1998. Both products were aimed at professionals working in medicine, architecture and sales, not home users. The M2 also became a short-lived arcade board by Konami. As games ran straight from the CD-ROM drive, it suffered from long load times and a high failure rate, so only five games were developed for it.

The M2 technology was later used in automated teller machines, and in Japan in coffee vending machines.

In the late 1990s and from 2000 on, the system was also sold in the interactive kiosk market. In 2000, PlanetWeb, Inc. began offering software to allow the M2 to be used as an Internet appliance.^[6]

In 2010 the only completed M2 game, IMSA Racing, was made available to the public.^[4]

Konami arcade games based on M2 hardware

• Polystars (1997)
• Total Vice (1997)
• Battle Tryst (1998)
• Evil Night / Hell Night (1998)
• Heat of Eleven '98 (1998)

Technical specifications

• Central processing unit – Dual 66 MHz PowerPC 602^[3]
  • Implements the 32-bit PowerPC RISC instruction set architecture
  • PowerPC CPU designed for consumer electronics applications
  • 1.2 watts power usage each
  • 32-bit general purpose registers and ALU
  • 33 MHz 64-bit multiplexed address and data bus
  • 4 kiB data and instruction caches (Level 1). No Level 2 cache
  • 1 integer unit, 1 floating point unit, no branch processing unit, 1 load/store unit
  • SPECint92 rating of 40 each, approximately 70 MIPS each.
  • 1 million transistors manufactured on a 0.50 micrometre CMOS process
• Custom ASICs
  • BDA:
    • Memory control, system control, and video/graphic control
    • Full triangle renderer including setup engine, MPEG-1 decoder hardware, DSP for audio and various kinds of DMA control and port access
    • Random access of frame buffer and z-buffer (actually w-buffer) possible at the same time
  • CDE:
    • Power bus connected to BDA and the two CPUs
    • "bio-bus" used as a low-speed bus for peripheral hardware
• Renderer capabilities:
  • 1 million un-textured triangles/s geometry rate
  • 100 million pixels/s fill rate
  • reportedly 700,000 textured polygons/s *without* gouraud shading or additional effects
  • reportedly 300,000 to 500,000 textured polygons/s *with* gouraud shading, lighting and effects
  • shading: flat shading and gouraud shading
  • texture mapping
  • decal, modulation blending, tiling (16k/128k texture buffer built-in)
  • hardware z-buffer (16-bit) (actually a block floating point with multiple (4) range w-buffer)
  • object-based full-scene anti-aliasing
  • alpha channel (4-bit or 7-bit)
  • 320x240 to 640x480 resolution at 24-bit color^[3]
• Sound hardware – 16-bit 32-channel DSP at 66 MHz (within BDA chip)
• Media – Quad-speed CD-ROM drive (600 KB/s)
• RAM – Unified memory subsystem with 8 MB
  • 64-bit bus resulting in peak 533 MB/s bandwidth
  • Average access 400 MB/s
• Full Motion Video – MPEG-1^[3]
• Writable Storage – Memory cards from 128 KiB to 32 MiB
• Expansion Capabilities – 1 PCMCIA port (potentially used for Modems, Ethernet NICs, etc.)

References

Further reading

• Konami Arcade based on M2 System 16 page on the Konami arcade board based on M2 technology
• "M2: Hit or Myth?". Next Generation magazine, June 1997, p. 63.
• Noonburg, Derek. PowerPC FAQ, February 27, 1997.

External links

• Games That Weren't 3DO/M2 – A website about unreleased 3DO M2 games

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