Apple-2-SW/Unidisk
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The project is based on the knowing of internal structure of UniDisk 3.5 drive, it uses same HW of Apple II machines. It is a smart device built by controlled drive board powered by The project is based on the knowing of internal structure of UniDisk 3.5 drive, it uses same HW of Apple II machines. It is a smart device built by controlled drive board powered by
>65c02 mp @2.0 Hz with 2KB RAM and 8KB ROM plus 527 byte of I/O peripheral registers, all addressing by memory mapped method. >65c02 mp @2.0 MHz (model GTEu G65SC02P-2 CMOS 8bit 2MHz PDIP40) with 2KB StaticRAM (model HITACHI HM6116LP-2 CMOS 8bit 120ns PDIP24) and 8KB PROM IWM Floppy disk controller (model VLI VF4060-001 344-0041-B IWM PDIP28) plus 527 byte of I/O peripheral registers, all addressing by memory mapped method.
The UniDisk 3.5 drives can use directly by Apple //c with 3.5 ROM (ROM version 0) or by Apple IIe or an II Plus using special interface controller card aka "LIRON card". The UniDisk 3.5 drives can use directly by Apple //c with 3.5 ROM (ROM version 0) or by Apple IIe or an II Plus using special interface controller card aka "LIRON card".