Hardware DIPs: Difference between revisions

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[[File:harddips.png|right|thumb|DIP switches on MVS boards.]]
[[File:harddips.png|right|thumb|DIP switches on MVS boards.]]


Physical switches on MVS boards used to configure various options like freeplay and multiplayer link. The switches states are readable through register {{Reg|REG_DIPSW}}.
Physical DIP switches on MVS boards used to configure various options like coin-up and multiplayer link. The switches states are read through register {{Reg|REG_DIPSW}} as a byte (0 is on).


*Switch 8: Freeze (done by software, in a BIOS call)
*Switch 8: Freeze (done by software in a [[system ROM]] call)
*Switch 7: Enable freeplay
*Switch 7: Enable freeplay
*Switch 6: Enable communication
*Switch 6: Enable communication
*Switches 4~5: [[Multiplayer]] link cab number setting
*Switches 4~5: [[Multiplayer]] link cab number (in binary: 1, 2, 3, 4)
*Switch 3: Mahjong Controller
*Switch 3: Mahjong Controller
*Switch 2: Coin slots configuration
*Switch 2: Number of coin chutes (1 or 2)
*Switch 1: [[Test mode]]
*Switch 1: [[Test mode]]



Revision as of 16:22, 20 December 2015

File:Mvs dip.jpg
Hard DIPs on MV1F MVS board.
File:Harddips.png
DIP switches on MVS boards.

Physical DIP switches on MVS boards used to configure various options like coin-up and multiplayer link. The switches states are read through register REG_DIPSW as a byte (0 is on).

  • Switch 8: Freeze (done by software in a system ROM call)
  • Switch 7: Enable freeplay
  • Switch 6: Enable communication
  • Switches 4~5: Multiplayer link cab number (in binary: 1, 2, 3, 4)
  • Switch 3: Mahjong Controller
  • Switch 2: Number of coin chutes (1 or 2)
  • Switch 1: Test mode

There's no such switches on AES and CD systems ($300001 reads what ?).