Thomson_EF9366

Thomson EF936x

Thomson EF936x

Graphic Display Processor (GDP) by Thomson-EFCIS


The Thomson EF936x series is a type of Graphic Display Processor (GDP) by Thomson-EFCIS.[1] The chip could draw at 1 million pixels per second, which was relatively advanced for the time of its release (1982 or earlier).

NDR-Klein-Computer graphics card using EF9366.
Siemens SMP-E353 ECB Bus video board using EF9366.

There are various versions of the chip (EF9364,[2][3][4][5][6][7] EF9365,[8][9][10] EF9366,[11][12][10] EF9367,[13][14][15] SFF96364,[16][17][18] EF9369[19][20][21]),[22] with slightly different capabilities.

In 1982 Commodore released a "High Resolution Graphics" board for the PET based on the EF9365 and EF9366 chips, allowing it to display 512 × 512 or 512 × 256 resolution graphics.[23][24][25] The EF9366 was also used on the SMP-E353 graphic card for the Siemens SICOMP [de] computer series and on the NDR-Klein-Computer introduced in 1984.[26]

Version EF9369 was used on computers such as the Thomson MO5NR[27], MO6[28], TO8,[29] TO9[30] and TO9+,[31] and from 1985 to 1989 on the DAI Personal Computer.

Versions

Based on the 1989 data book published by the company, the EF936x series was split into Graphics Controllers and Color Palette models.[32]

Graphics Controllers

  • EF9364 CRT Processor introduced in 1981
  • EF9365 512 × 512 (interlaced), 256 × 256, 128 × 128, 64 × 64; 50 Hz[33][34]
  • EF9366 512 × 256 (non-interlaced); 50/60 Hz[33]
  • EF9367 1024 × 512 (interlaced), 1024 × 416 (interlaced); 50/60 Hz (capable of SECAM system output for the French market).[35]
  • SFF96364[36][37][38]

Color Palette

  • EF9369 - 4-bit DACs (16 out of 4096 colors - 12-bit RGB), generating gamma corrected (gamma 2.8) voltages.[21]
  • TS9370 - 4-bit DACs (16 out of 4096 colors)[39]

Capabilities

  • Integrated DRAM controller
  • Line drawing, with delta-x and delta-y limited to 255 each. Support for solid, dotted, dashed and dotted/dashed lines.[9]
  • Built-in 5 × 8 pixel ASCII font.[40] Support for rendering tilted characters, and scaling by integer factors (no antialiasing)[33]
More information EF9365/6 Character Set, 2x ...

The GPUs did not support direct access to the graphics memory, although a special command was provided to aid in implementing access to individual memory words.


See also


References

  1. "SGS-Thomson, Graphic Processors Databook, 1st Edition, March 89" (PDF). bitsavers.org.
  2. Electronic Engineering. Morgan-Grampian. 1981.
  3. "IC Master". Hearst Business Communications. February 21, 1990 via Google Books.
  4. "Thomson EF9364 - MAME machine". adb.arcadeitalia.net.
  5. Ferguson, John D. (1985). Microprocessor Systems Engineering. Addison-Wesley. ISBN 978-0-201-14657-8.
  6. Money, S. A. (2014-05-10). Microprocessor Data Book. Academic Press. ISBN 978-1-4832-6870-5.
  7. Electronic Design. Hayden Publishing Company. 1986.
  8. Electronic Engineering. Morgan-Grampian. 1987.
  9. EDN, Electrical Design News. Rogers Publishing Company. 1980.
  10. Computer Design. Computer Design Publishing Corporation. 1978.
  11. ElectronicsWeek. McGraw-Hill. 1984.
  12. Electronics Industry. February 1985.
  13. "IC Master". Hearst Business Communications. February 21, 1990 via Google Books.
  14. "PET-Grafikkarte Commodore ASSY No. 324402-01 für CBM 8296 - CBMPET.DE". www.cbmhardware.de. Archived from the original on 11 September 2011. Retrieved 14 March 2022.
  15. Purcaru, Bogdan Ion (March 13, 2014). "Games vs. Hardware. The History of PC video games: The 80's". Purcaru Ion Bogdan via Google Books.
  16. Plate, Jurgen (October 1984). "Mikrocomputer: Zur Fernsehserie" (PDF). ELO: 46.
  17. "Thomson MO5 NR". www.silicium.org. Retrieved 2022-12-31.
  18. "Thomson MO6 Guide, 1986" (PDF). musee-des-jeux-video.com.
  19. "TO 9 Thomson". www.old-computers.com. Retrieved 2022-12-31.
  20. "TO 9 PLUS Thomson". www.old-computers.com. Retrieved 2022-12-31.
  21. "West Europe Report: Science and Technology" (PDF). Foreign Broadcast Information Service. August 23, 1983. p. 7. Archived (PDF) from the original on March 4, 2016. Retrieved July 29, 2013.



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