{"product_id":"umsx-pro-rev-3-90-1chipmsx-fpga-msx2-computer","title":"uMSX Pro Rev.3.90 - 1ChipMSX FPGA MSX2+ Computer","description":"\u003ch2\u003eWhat is it?\u003c\/h2\u003e\u003cp\u003eThe latest \u003cstrong\u003euMSX Pro Rev.3.90\u003c\/strong\u003e is here, fully stocked and ready to ship. Our goal is simple: let everyone easily own a 1ChipMSX and get the definitive MSX2+ experience.\u003c\/p\u003e\u003cp\u003eBorn from the \u003cstrong\u003eva-de-retro\u003c\/strong\u003e retro computing forum, the uMSX is an MSX2+ FPGA implementation inspired by the Zemmix — one of the first commercially available FPGA-based MSX2+ systems. \"uMSX\" carries two meanings:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eIt's a \u003cstrong\u003e1ChipMSX clone\u003c\/strong\u003e. To keep PCB manufacturing affordable, the original designer (BCH) split the board into a mainboard and a cartridge slot board, each under 10×10cm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\"Your MSX.\"\u003c\/strong\u003e 1ChipMSX belongs to everyone. The FPGA and hardware designs are fully open source, so anyone can build their own.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDesign Heritage\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOriginal uMSX Rev3.7 PCB by BCH\u003c\/li\u003e\n\u003cli\u003eGerber reverse engineering by Null\u003c\/li\u003e\n\u003cli\u003eAcrylic case by Xiaohao Studio\u003c\/li\u003e\n\u003cli\u003eMainboard PCB modifications \u0026amp; optimization by Denjhang, Null\u003c\/li\u003e\n\u003cli\u003eCartridge slot board modifications by Denjhang, BH2VGM\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe VHDL core is the well-known \u003cstrong\u003eKDL PLD implementation for MSX2+\u003c\/strong\u003e (also known as ESEMSX), used by the vast majority of FPGA-based MSX computers.\u003c\/p\u003e\u003ch2\u003eHardware Core\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFPGA:\u003c\/strong\u003e Altera EP1C12Q240C8N — millions available from surplus markets, with hidden 5V tolerance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfig Flash:\u003c\/strong\u003e 4Mbit EPCS4 active-serial flash for firmware\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSRAM:\u003c\/strong\u003e MT48LC16M16A2 for system memory\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClock:\u003c\/strong\u003e NC7WV04P6X inverter + 21.47727MHz crystal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReset IC:\u003c\/strong\u003e 953B voltage detector\u003c\/li\u003e\n\u003cli\u003eCompact SMD layout (0603 resistor arrays, 0805 components) with select through-hole parts\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eRev.3.90 Key Upgrades\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in WiFi\u003c\/strong\u003e — ESP8266 module integrated on-board. No dongle needed, 2.4G wireless networking out of the box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Keyboard Support\u003c\/strong\u003e — Physical switch toggles between PS\/2 and USB keyboards. Dedicated on-board USB-to-PS\/2 conversion chip ensures full compatibility with virtually all USB keyboards\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Classic Video Outputs\u003c\/strong\u003e — VGA + Analog RGB + S-Video + Composite Video. Full 1ChipMSX port combo for modern monitors and vintage CRTs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable Power Switch\u003c\/strong\u003e — Proper self-locking switch replacing the flaky 2-pin header\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-amp with Volume Control\u003c\/strong\u003e — On-board audio amplifier with physical volume adjustment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIB0505S Power Filter\u003c\/strong\u003e — Isolated DC-DC module for cleaner audio with reduced noise\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-ejecting MicroSD Slot\u003c\/strong\u003e — Push-to-eject mechanism for better handling\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImproved Layout\u003c\/strong\u003e — VGA port repositioned to rear, enhanced signal quality eliminating color shift and interference\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo Vertical MSX Cartridge Slots\u003c\/strong\u003e — With dust covers, upright orientation saves desk space\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Acrylic Case\u003c\/strong\u003e — Mainboard and slot board in a single enclosure. No exposed PCBs or loose ribbon cables\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCore Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e MSX2+ full architecture, broad software and game support\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRAM:\u003c\/strong\u003e 2MB or 4MB Mapped RAM (user-selectable)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVDP:\u003c\/strong\u003e V9958 — sharp graphics, authentic MSX visual experience\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAudio:\u003c\/strong\u003e FM synthesis + Konami SCC wavetable + PSG — complete MSX sound\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJoystick Ports:\u003c\/strong\u003e 2 × DB9 for multiplayer and classic peripherals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCartridge Power:\u003c\/strong\u003e 12V lines for compatible peripherals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e MicroSD up to 4GB — pre-loaded with OCM BIOS, system files, and SofaRun game browser\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eVerified Compatible Cartridges\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eROM \/ Multi-mapper:\u003c\/strong\u003e Original game ROMs, multi-mapper carts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisk interfaces:\u003c\/strong\u003e TDC-600, SD Mapper V1\/V2, Beer202 IDE, Multi-controller FDD+IDE, Sunrise IDE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSound expansion:\u003c\/strong\u003e FMPAC, Wozblaster, SFG-01\/05, Philips Music Module, vFM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-function:\u003c\/strong\u003e Carnivore2\/2+, MegaFlashROM SCC+ SD + 512K RAM, MSX Pico, Flashjack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraphics expansion\u003c\/strong\u003e (requires 1.5A PPTC fuse + 5V\/2A PSU): TRH9000, Tecnobytes V9990 Powergraph, Sunrise GFX9000\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAssembled uMSX Pro Rev.3.90 in acrylic case\u003c\/li\u003e\n\u003cli\u003eDC 5V power supply\u003c\/li\u003e\n\u003cli\u003e1GB MicroSD card pre-loaded with OCM BIOS, system files, SofaRun browser, SCC FlashROM, and floppy emulator\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eReady Out of the Box\u003c\/h2\u003e\u003cp\u003eZero configuration needed. SofaRun lets you browse and launch games without typing commands. Built-in SCC FlashROM and floppy drive emulator handle 2MB ROM games and multi-disk titles seamlessly — disk swapping via keyboard hotkeys.\u003c\/p\u003e","brand":"Denjhang's Retro Hardware","offers":[{"title":"US \/ 1xJoymega+MD Controller","offer_id":46179601055941,"sku":null,"price":119.0,"currency_code":"USD","in_stock":true},{"title":"EU \/ 1xJoymega+MD Controller","offer_id":46179601088709,"sku":null,"price":129.0,"currency_code":"USD","in_stock":true},{"title":"US \/ 2xJoymega+MD Controller","offer_id":46179601121477,"sku":null,"price":129.0,"currency_code":"USD","in_stock":true},{"title":"US \/ no","offer_id":46179601154245,"sku":null,"price":99.0,"currency_code":"USD","in_stock":true},{"title":"EU \/ 2xJoymega+MD Controller","offer_id":46179601187013,"sku":null,"price":139.0,"currency_code":"USD","in_stock":true},{"title":"EU \/ no","offer_id":46179601219781,"sku":null,"price":109.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/8507\/1813\/files\/97a5c82b28e0e45ea58999000f8c708c.jpg?v=1777687060","url":"https:\/\/denjhang.myshopify.com\/products\/umsx-pro-rev-3-90-1chipmsx-fpga-msx2-computer","provider":"Denjhang's Retro Hardware","version":"1.0","type":"link"}