Actions

Sega H1 Board

From Sega Retro


This teeny-tiny article needs some work. You can help us by expanding it.


Notavailable.svg
Fast facts on Sega H1 Board
Manufacturer: Sega
Release Date RRP Code
Arcade
World
1995-04Media:CoolRiders Arcade JP Flyer.jpg[1] 837-10389


The Sega H1 Board is an arcade board made by Sega. Released in 1995, it was a successor to the Sega System 32 and was the last Super Scaler arcade system board (using sprite/texture scaling for three-dimensional graphics). Hardware-wise, it crosses the bridge between the System 32 and the Sega Model 1 and Model 2. The H1 Board also uses hardware similar to the Sega Saturn and ST-V. Only two games are known to use the H1 Board.

Technical specifications

Technical specifications for the Sega H1 Board:[2][3]

Sound

Graphics

  • GPU: Sega 837-9621 Video Board @ 50 MHz
    • Hitachi FPGA: HG62S0791R17F, HG51B152FD, 2× HG62G019R16F
    • Sega Custom QFP: 315‑5694, 315‑5697, 315‑5698, 4× 315‑5648, 2× 315‑5695, 2× 315‑5696
    • Bus width: 160‑bit (2× 80‑bit buses)
    • Memory access: VRAM (Video RAM), VROM (Video ROM), DMA, loads sprites/textures directly from VROM at high bandwidth
    • Sprites/Textures: RLE compression, 8 color blending levels, Z-buffering,[9] blitter, sprite/texture cache, variable sprite/texture sizes, scaling/zooming, rotation, distortion, horizontal & vertical flipping, digitized sprites, 8×1 to 1024×1024 sizes
    • Backgrounds: Tilemap and bitmap backgrounds, scrolling,[10] zooming, rotation, distortion, tile flipping
  • Display: 2-4 monitors, progressive scan
  • Display resolution:
    • 2 monitors: 640×224 to 992×384 (320×224 to 496×384 per monitor)
    • 4 monitors: 1280×224 to 1280×240 (320×224 to 320×240 per monitor)
  • Overscan resolution:
    • 2 monitors: 640×262 to 1280×512 (320×224 to 640×512 per monitor)
    • 4 monitors: 1280×262 to 1824×262 (320×224 to 456×262 per monitor)
  • Refresh rate: 57.0426–60 Hz
    • Frame rate: 1–60 FPS
  • Color depth: 32,768 (15‑bit) to 16,777,216 (24‑bit)
    • Sprite colors: 256 (8‑bit color) to 262,144 (15-bit color, 8 blending levels)[9]
  • Sprites/Textures per frame: 16,384 (768 KB object data memory, 48 bytes per object)
    • Maximum sprites/textures per second: 983,040 (60 Hz)
  • Sprite/Texture framebuffer fillrate: 100 MPixels/s (50 MPixels/s per monitor)
    • Maximum pixels/texels per scanline: 3180 (224p, 15-bit color), 6361 (224p, 8-bit color)
    • Maximum sprites/textures per scanline: 397 (15-bit color), 795 (8-bit color)

Memory

  • Memory: Up to 94.3 MB (6276 KB main, 85.125 MB video, 3 MB sound)
  • System RAM: 8452 KB (8.254 MB)
    • Main RAM: 2180 KB (2 MB SDRAM, 128 KB SRAM, 4 KB FRAM)
    • VRAM: 5.125 MB (2.25 MB FPRAM, 2 MB DRAM, 896 KB SRAM)
    • Sound RAM: 1 MB (DRAM)
  • System ROM: 1 MB (EPROM)
  • Game ROM: Up to 85 MB
    • Main ROM: 3 MB (EPROM)
    • VROM: 80 MB (MROM)
    • Sound ROM: 2 MB

Bandwidth

  • System RAM bandwidth: 574.4 MB/sec
    • Main RAM: 114.54544 MB/sec (32-bit, 28.63636 MHz)[11]
    • VRAM: 444.444444 MB/sec (160-bit, 22.222222 MHz)[12]
    • Sound RAM: 15.384615 MB/sec (16-bit, 7.692308 MHz)[13]
  • System ROM bandwidth: 57.3 MB/sec (16-bit, 28.63636 MHz)[14]
  • Game ROM bandwidth: 799.7 MB/sec[15]
    • Main ROM: 114.54544 MB/sec (32-bit, 28.63636 MHz)[16]
    • VROM: 640 MB/sec (160-bit, 32 MHz)
    • Sound ROM: 45.158 MB/sec (16-bit, 22.579 MHz)

List of games

References

Sega Arcade Boards
Originating in Arcades
76 77 78 79 80 81 82 83 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
Fonz Galaxian Zaxxon Appoooh X Board Model 2 Hikaru Atomiswave
Blockade G80 Hang-On / Space Harrier Model 1 H1 Model 3 NAOMI 2
VIC Dual System 1 System 24 NAOMI
VCO Object LaserDisc System SP
System 2 System 18
System 16
OutRun System 32
Gigas
Y Board
Based on Consumer Hardware
83 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 15
SG-1000 System E System C Triforce Europa-R RingEdge 2
Mega-Tech System Sega Titan Video Chihiro Nu
Mega Play Lindbergh
RingEdge
RingWide
Hardware Series / Generations
1960s 1970s 1980s 1990s 2000s 2010s
Electro-mechanical systems Sega System series Sega NAOMI series
Discrete logic systems Super Scaler series Post-NAOMI systems
Pre-System boards Sega Model series