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External Control Of Microprocessor Branching To A Diagnostic Microprogram Disclosure Number: IPCOM000068284D
Original Publication Date: 1979-Dec-01
Included in the Prior Art Database: 2005-Feb-20

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Lynch, E [+details]


When power is applied to a microprocessor, or when a reset occurs. hardware in the processor forces the instruction counter to a predetermined value, e.g., FFPD. It is usual to provide s branch instruction at this predetermined location to cause the microprocessor to branch to initialization microcode, which may then occupy as much storage as is required without addressing conflict.