GR8BIT 仕様

 Compatibility ・MSX2 standard (fully compatible)
  • ・MSX2+ standard (partially compatible, full compatibility requires V9958)
  • ・ATX form factor, ATX power management compliant
 CPU ・Z80 (4-20MHz), compatible or emulation board (3.3V)
  • ・Multi-processor capable
 Main system memory ・1MiB (SRAM), upgradeable to 4MiB
  • ・Further extensions to 1GiB (DRAM)
 Video subsystem ・V9938 VDP, 128KiB VRAM, direct video memory access
  • ・Composite TV output (grayscale), RGB NTSC output
 Storage interfaces ・1.44MiB FDD
  • ・IDE HDD
  • ・Any compatible storage device in the external slots
 I/O ports and interfaces ・Seven (7) GR8BUS internal slots
  • ・Two (2) expandable external slots (1 and 2)
  • ・PS/2 and compatible keyboard interfaces
  • ・Printer/parallel port
  • ・Two (2) compatible joystick ports / general I/O ports
 Multimedia capabilities ・4 channel programmable sound generator
  • ・Tunable square waveform generator
  • ・Additional 5 programmable channels when using SCC
 Networking capabilities  (No certified devices yet)
 Software
(インターネットからダウンロードできます)
・Language pack (replacement for Kanji ROM, 16KiB). Languages: JA, EN, RU, ES, FR, DE. See "Downloads" section.
  • ・Gaming (list, database, more than 320 titles)
  • ・Software development (ASCII C, ASCII Assembler, BASIC, Fortran, Cobol, whatever, database)
  • ・ROM images (database)
  • ・Operating systems (MSX-DOS, CP/M, SymbOs)
  • ・Emulation (BlueMSX, OpenMSX)


GR8BIT キット詳細(※)

 部品  数量  部品  数量
 Capacitors  180  Connectors  40
 Semiconductors  20  Integrated circuits  100
 Jumpers  10  Crystal oscillators  6
 Resistors  100  Resistor packs  20
 Slots  10  Sockets  100
 Other  5  Total:  591

                                    
 PCB  Area  Sheet  Total
 Main board  115.2 in²  1  
 Video board  51.7 in²  1  
     1  172.2 in²
       
 Z80 CPU board  28.8 in²  2  
 Memory board  28.8 in²  2  
 I/O board  51.7 in²  2  
 Slot board  14.6 in²  2  
 Keboard board  3.3 in²  2  
 GR8BUS adaptor board  6.5 in²  2  
     2  138 in²


    
         GR8BIT PCB sheet 1*                      GR8BIT PCB sheet 2*

    

*写真はプロトタイプのものになります。変更する場合もございます。
※お客様への予告なしにキット内容の仕様を変更する場合もございます。