MV-LED: Difference between revisions

From NeoGeo Development Wiki
Jump to navigation Jump to search
mNo edit summary
mNo edit summary
Line 1: Line 1:
[[File:mv-led2.jpg|thumb|MV-LED2. Picture courtesy of [[http://www.mvs-scans.com MVS-Scans]].]]
[[File:mv-led2.jpg|thumb|MV-LED2. Picture courtesy of [[http://www.mvs-scans.com MVS-Scans]].]]


Credits display board in original [[MVS systems]]. Uses 2 7-segment displays to show the player's remaining [[credits]].
Credits display board in original [[MVS systems]]. Uses two 7-segment displays to show the player's remaining [[credits]].


Uses [[CRE401]] RC arrays for inputs.
Uses [[CRE401]] RC arrays for inputs.
To copy here: http://mvs.gotwalls.com/images/a/a6/Mv_led2_hardware1_front.jpg, http://mvs.gotwalls.com/images/b/b2/Mv_led2_hardware1_back.jpg


Connections:
Connections:
Line 19: Line 17:


See also [[MV-ELA]] for the marquee board details.
See also [[MV-ELA]] for the marquee board details.
[[File:mv-led2_schem.jpg|thumb|MV-LED2 board incomplete schematic.]]
Connection to the MVS board visible in [[http://wiki.neogeodev.org/index.php?title=File:Mv1fs-page5.jpg|in page 5 of the schematics]]


[[Category:Chips]]
[[Category:Chips]]
[[Category:Cartridge systems]]
[[Category:Cartridge systems]]

Revision as of 18:00, 5 October 2011

MV-LED2. Picture courtesy of [MVS-Scans].

Credits display board in original MVS systems. Uses two 7-segment displays to show the player's remaining credits.

Uses CRE401 RC arrays for inputs.

Connections:

  • VCC
  • VCC
  • Clk
  • Digit 1 ABCD
  • Digit 2 ABCD
  • GND
  • GND

Digits are BCD-coded and controled by registers REG_LEDLATCHES($380031) and REG_LEDDATA($380041).

See also MV-ELA for the marquee board details.

File:Mv-led2 schem.jpg
MV-LED2 board incomplete schematic.

Connection to the MVS board visible in [page 5 of the schematics]

Retrieved from "https://wiki.neogeodev.org/index.php?title=MV-LED&oldid=1335"