Sega H1 Board

From Sega Retro

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


Notavailable.svg
Sega H1 Board
Manufacturer: Sega
Release Date RRP Code

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.

Specifications

Technical specifications for the Sega H1 Board:[1][2]

Sound

  • Sound CPU: Toshiba TMP68HC000N @ 16 MHz (16/32-bit, 2.8 MIPS)
  • Sound processors: 2× Yamaha YMF292 (SCSP)[6]
    • Sound DSP: 2× Yamaha FH1 DSP (Digital Signal Processor) @ 22.579 MHz (24-bit, 128-step, 8 parallel instructions)
    • Bus width: 48-bit (2× 24-bit) internal, 32-bit (2× 16-bit) external[7]
    • Audio channels: 64 (2× 32)
    • Sound formats: PCM, FM, MIDI, LFO
    • PCM sampling: 8/16‑bit audio depth, 44.1 kHz sampling sate (CD quality)
  • Sound output: 4 speakers (surround 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,[8] 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,[9] 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: 262,144 (18‑bit) to 16,777,216 (24/32‑bit)
    • Colors per sprite: 32,768 (15‑bit color) to 262,144 (15-bit color, 8 blending levels)[8]
  • 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)
    • Maximum sprites/textures per scanline: 397 (8×1 to 8×8)

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)[10]
    • VRAM: 444.444444 MB/sec (160-bit, 22.222222 MHz)[11]
    • Sound RAM: 15.384615 MB/sec (16-bit, 7.692308 MHz)[12]
  • System ROM bandwidth: 57.3 MB/sec (16-bit, 28.63636 MHz)[13]
  • Game ROM bandwidth: 799.7 MB/sec[14]
    • Main ROM: 114.54544 MB/sec (32-bit, 28.63636 MHz)[15]
    • VROM: 640 MB/sec (160-bit, 32 MHz)
    • Sound ROM: 45.158 MB/sec (16-bit, 22.579 MHz)

Softography

References

  1. ↑ https://github.com/mamedev/mame/blob/master/src/mame/drivers/coolridr.cpp
  2. ↑ http://www.google.com/patents/US6141122
  3. ↑ 3.0 3.1 File:Hitachi SuperH Programming Manual.pdf
  4. ↑ File:MB89374 datasheet.pdf
  5. ↑ File:MB89396 datasheet.pdf
  6. ↑ File:ST-077-R2-052594.pdf
  7. ↑ File:Sega Service Manual - Sega Saturn (PAL) - 013-1 - June 1995.pdf
  8. ↑ 8.0 8.1 http://mamedev.emulab.it/haze/2013/02/28/does-it-blend/
  9. ↑ http://mamedev.emulab.it/haze/2013/02/19/still-too-cool-for-mamedev/
  10. ↑ File:HM5241605 datasheet.pdf
  11. ↑ File:M5M411860TP datasheet.pdf
  12. ↑ File:HM514270 datasheet.pdf
  13. ↑ File:TC57H1025 datasheet.pdf
  14. ↑ https://github.com/mamedev/historic-mame/blob/master/src/mame/drivers/coolridr.c
  15. ↑ File:M27C4002 datasheet.pdf
  16. ↑ http://mamedev.emulab.it/haze/2015/07/29/mame-0-164-some-highlights/


Sega arcade boards
Originating in arcades









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





























Retrieved from "https://segaretro.org/index.php?title=Sega_H1_Board&oldid=351311"