Patents Examined by B. Ledell
  • Byte-swap hardware simulator for a sixteen bit microprocessor coupled to an eight bit peripheral unit
    Patent number: 5335340
    Abstract: An arrangement for enabling a sixteen bit microprocessor to transfer data to and from a peripheral unit operating in an eight bit mode includes a single OR gate for simulating an odd address so that only the low byte portion of the data bus is utilized. A subroutine in the microprocessor causes the microprocessor to act as if all addresses in the peripheral unit are even and to force the OR gate to an active state whenever the real address in the peripheral unit is odd.
    Type: Grant
    Filed: May 29, 1992
    Date of Patent: August 2, 1994
    Assignee: The Whitaker Corporation
    Inventor: Michael D. Strong