![]() ![]() ![]() This can be used to move a peripheral cartridge (like a serial card or ethernet card) normally residing at IO2 to the alternative IO1 position so that it can coexist with the RAM Expansion Unit, which must reside in IO2. The X-Pander 3 offers the following features:3 individually-selectable expansion portspower indicators for each portAbility to swap IO select lines on 2nd and 3rd portseasily accessed piano-style configuration switchestop-loading or back-loading 3rd port.3rd port can accommodate 2 cartridges at the same time*reset switch* Both top and back-loading options for port 3 share a single set of configuration switches, requiring 2 cartridges that can coexist without configuration.RequirementsCommodore C64, C64C, C128, C128D, or SX64Technical DetailsX-Pander 3 creates a “passive” cartridge port “bus”, with switches on the following lines:Power (2 switches)IO1 ($de00-$deff)IO2 ($df00-$dfff)ROML ($8000)ROMH ($a000)EXROMGAMEAdditionally, ports 2 and 3 contain jumpers allowing one to “swap” IO1 and IO2. Utilize multiple cartridges at once, or easily switch cartridges without removal. Github link: heir-apparent to the CMD EX-3 and EX2+1, the X-Pander 3 opens up a wealth of expansion options for your Commodore 64, SX64, C128, or C128D.
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