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Hardware emulation of parallel ATA drives with serial ATA interface

  • US 6,854,045 B2
  • Filed: 06/29/2001
  • Issued: 02/08/2005
  • Est. Priority Date: 06/29/2001
  • Status: Expired due to Fees
First Claim
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1. An apparatus comprising:

  • an access detector to detect an access type of an access to one of a plurality of serial ports interfacing to serial storage devices, the access being provided by a parallel driver to one of a plurality of parallel channels interfacing to parallel storage devices via task file registers of the parallel channels;

    a mapping circuit to map the serial ports to the parallel channels;

    a state machine coupled to the access detector and the mapping circuit to emulate a response from the one of the parallel channels based on the access type and the mapped serial ports;

    a plurality of registers coupled to the state machine and the access detector to emulate the task file registers of the parallel channels; and

    a serial port selector coupled to the state machine and the serial ports to select the one of the serial ports based on the mapped serial ports.

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