Description Allows connecting of standard PC high-density drives. Manufacturer: Erhard Puetz Year: 1990 Picture here (26 KB JPG) Formats ? Speeds ? Commands 50 - Write sector 57 - Write sector with verify 52 - Read sector 21 - Format 53 - Get status 20 - Format auto 3F - Get high-speed index 41 - Add/Remove command 48 - Happy command 4E - Read PERCOM block 4F - Write PERCOM block 51 - Quit 54 - Read memory 68 - Get SIO length 69 - Get SIO routine 66 - Format with skew Hardware cpu 65C02, eprom 27C128, ram 62C256, riot 65c32, fdc WD37C65C, uart 71051. Schematics here (37 KB TIF). Misc The two switches are: a) Selection of clock source (RIOT or Atari). By default Atari doesn't send clock b) drive number switch Back (c) 1998-2004 Jindroush Last modified: Sun Jan 12 22:58:50 2003