Hardware DIPs: Difference between revisions
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[[File:mvs_dip.jpg|right|thumb|Hard DIPs on MV1F MVS board.]] | [[File:mvs_dip.jpg|right|thumb|Hard DIPs on MV1F MVS board.]] | ||
[[File:harddips.png|right|thumb|DIP switches state viewer in the [[system ROM]]]] | [[File:harddips.png|right|thumb|DIP switches state '''viewer''' in the [[system ROM]].]] | ||
Physical DIP switches on MVS boards used to configure various options like coin | Physical DIP switches on MVS boards used to configure various options like the number of coin chutes and the 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 [[system ROM]] call) | * Switch 8: Freeze - pauses the game (done by software in a [[system ROM]] call) | ||
*Switch 7: Enable freeplay | * Switch 7: Enable freeplay (player start doesn't require credits) | ||
*Switch 6: Enable communication | * Switch 6: Enable communication | ||
*Switches 4~5: [[Multiplayer]] link cab number (in binary: 1, 2, 3, 4) | * Switches 4~5: [[Multiplayer]] link cab number (in binary: 1, 2, 3, 4) | ||
*Switch 3: | * Switch 3: Enable [[mahjong controller]] | ||
*Switch 2: Number of coin chutes (1 or 2) | * Switch 2: Number of [[coin switch|coin chutes]] (1 or 2 Euro & Japan, 2 or 4 on USA) | ||
*Switch 1: | * Switch 1: Bring up the system ROM menu at boot | ||
There | There are no such switches on home and CD systems. | ||
The {{PCB|MV4}} has an unused footprint for a second set of DIP switches "DSW2" which could have been read through register {{Reg|REG_SYSTYPE}}. | |||
[[Category:Cartridge systems]] | [[Category:Cartridge systems]] | ||
Latest revision as of 15:08, 2 September 2019
Physical DIP switches on MVS boards used to configure various options like the number of coin chutes and the multiplayer link. The switches states are read through register REG_DIPSW as a byte (0 is on).
- Switch 8: Freeze - pauses the game (done by software in a system ROM call)
- Switch 7: Enable freeplay (player start doesn't require credits)
- Switch 6: Enable communication
- Switches 4~5: Multiplayer link cab number (in binary: 1, 2, 3, 4)
- Switch 3: Enable mahjong controller
- Switch 2: Number of coin chutes (1 or 2 Euro & Japan, 2 or 4 on USA)
- Switch 1: Bring up the system ROM menu at boot
There are no such switches on home and CD systems.
The MV4 has an unused footprint for a second set of DIP switches "DSW2" which could have been read through register REG_SYSTYPE.