1.2 System Overview (continued)

• Disk, Printer support --
  • FDC custom MFM controller chip built in, with 512-byte buffer, sector or full track read/write/format, LED and motor control, copy protection.
  • Built-in 3.5" double sided, 1MB MFM capacity drive
  • Media & file system compatible with 1581 disk drive
  • Supports one additional "dumb" drive externally.
  • Standard CBM bus serial (all modes, about 4800 baud)
  • Fast serial bus (C65 mode only, about 20K baud)
  • Burst serial (C65 mode only, about 50K baud)
• External ports --
  • 50-pin Cartridge/expansion port (ROM cartridges, etc.)
  • 24-pin User/parallel port (modem (1670), RS-232 serial)
  • Composite video/audio port (8-pin DIN)
  • Analog RGB video port. ) (DB-9)
  • RF video output jack
  • Serial bus port (disks (1541/1571/1581), printers, etc.)
  • External floppy drive port (mini DIN8)
  • 2 DB9 control ports (joystick, mouse, tablets, lightpen)
  • Left and right stereo audio output jacks
  • RAM expansion port, built-in support for RAM controller
• Keyboard -- 77 keys, including standard C64 keyboard plus:
  • Total of 8 function keys, FI-F16, Shifted and nonshifted
  • TAB, escape, ALT, CAPS lock, no scroll, help (F15/16)
  • Power, disk activity LEDs
  • Reset button
• Power supply -- external, brick type
  • +5VDC at 2.2A and +12VDC at .85A