Difference between revisions of "Sega Model 1"
From Sega Retro
| Line 45: | Line 45: | ||
*''[[Virtua Fighter]]'' (1993) | *''[[Virtua Fighter]]'' (1993) | ||
*''[[Wing War]]'' (1994) | *''[[Wing War]]'' (1994) | ||
| + | *''[[Sega VR|Sega VR-1]]'' (1994) | ||
| + | *''[[Sega VR|Dennoo Senki Net Merc]]'' (1995) | ||
==Gallery== | ==Gallery== | ||
Revision as of 23:46, 21 February 2015
| |||||
| Sega Model 1 | |||||
|---|---|---|---|---|---|
| Manufacturer: Sega | |||||
|
The Sega Model 1 is an arcade system board released by Sega in 1992. It is the successor to the Sega System 32 arcade boards, and was succeeded by the Sega Model 2 series. It was Sega's first hardware designed for 3D polygon graphics.
Originally, the Model 1 was simply known as the CG Board, but was retroactively given the Model 1 name after work on the Model 2 began.
Hardware
It began development in 1990,[1] and released in 1992. The Model 1 was intended to compete with Namco's System 21; Namco was then the market leader in polygonal 3D video games, with titles such as Galaxian³ and Starblade.[2] While it was a significant improvement over the System 21, the Model 1 hardware was expensive, and only a few games were developed for the platform.
Technical Specifications
- Main CPU: NEC V60 @ 16 MHz
- Fixed-point arithmetic: 32-bit RISC instructions @ 3.5 MIPS (million instructions per second)
- Floating-point unit: 32-bit and 64-bit operations
- Graphics board: Sega 837-7894 171-6080D VIDEO PCB
- GPU coprocessors: 5× Fujitsu TGP MB86233 (geometrizer, rasterizer, DSP, FPU)
- Coprocessor abilities: Floating decimal point operation function, axis rotation operation function, 3D matrix operation function
- Floating-point unit: 32-bit operations @ 16 MFLOPS (Mega-FLOPS) each (80 MFLOPS combined)
- Sound CPU: Motorola 68000 @ 12 MHz
- Sound chips: 2× Sega 315-5560 Custom MultiPCM
- Audio capabilities: 28 PCM channels per chip (one for music, one for sound effects), 56 PCM channels total
- Sound timer: Yamaha YM3834 @ 8 MHz
- RAM: 1936 KB (1880 KB SRAM)
- Main SRAM: 408 KB
- Video memory: 1464 KB SRAM (192 KB display list, 576 KB tiles, 64 KB colors)
- Audio memory: 64 KB (8 KB SRAM)
- Monitor display resolution: 496×384 pixels, 24 kHz horizontal sync, 60 Hz refresh rate, progressive scan (non-interlaced)
- Frame rate: 60 frames per second
- Color palette: 16,777,216 (16-bit high color depth and 256 luminance levels)
- Colors on screen: 190,464 (496×384)
- Graphical capabilities: Shading, flat shading, diffuse reflection, specular reflection, 2 layers of background scrolling, alpha blending, alpha channel, lighting
- Geometric performance: 180,000 polygons/sec (with all effects), 540,000 vectors/sec
- Rendering fillrate: 1,200,000 pixels/sec
List of Sega Model 1 Games
- Virtua Racing (1992)
- Star Wars Arcade (1993)
- Virtua Fighter (1993)
- Wing War (1994)
- Sega VR-1 (1994)
- Dennoo Senki Net Merc (1995)
Gallery
Unit
Amplifier PCB
Communication PCB
CPU
Input/Output PCB
Sound PCB
Video PCB
| 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
|
| 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
|
| PC-based hardware |
|
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|