Pin selectable multi-mode processor

Details Pin selectable multi-mode processor Pin selectable multi-mode processor

1990-09-07

1992-03-31

Fleming, Michael R.

Boots, shoes, and leggings

3642329, 364229, 3642292, 364284, 3642222, 364238, 364DIG1, G06F 1300, G06F 900

Patent

active

051014980

ABSTRACT:
A processor which has two different communications modes, a test mode, an an emulator mode is shown. These modes are selected by controlling inputs to two pins. More modes could be added with more pins. When a given mode is switched into, certain I/O pins instantly change function. Minimal hardware and software is required to implement a switch thus allowing rapid switches.

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