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Browse Prior Art Database

Common Interface for Microcode Trace

IP.com Disclosure Number: IPCOM000044251D
Original Publication Date: 1984-Nov-01
Included in the Prior Art Database: 2005-Feb-05
Document File: 2 page(s) / 33K

Publishing Venue

IBM

Related People

Fike, SJ: AUTHOR [+2]

Abstract

Microcode trace capabilities are presently put into and taken out of designs due to space and cost limitations and changes. Existing portable service systems can be used to extend the microcode trace capability for microcoded processors by providing control store address bits and several control lines to a common external adapter which is connected to the portable service system. The adapter 11 consists of buffers 12 and control functions 13 that are necessary to assemble the microcoded addresses 14 from the processor 15 and pass them on to the portable service system 16. It will have several different input plug capabilities to provide connection to a wide range of processors and technologies. A special code, which includes search parameters etc.

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Common Interface for Microcode Trace

Microcode trace capabilities are presently put into and taken out of designs due to space and cost limitations and changes. Existing portable service systems can be used to extend the microcode trace capability for microcoded processors by providing control store address bits and several control lines to a common external adapter which is connected to the portable service system. The adapter 11 consists of buffers 12 and control functions 13 that are necessary to assemble the microcoded addresses 14 from the processor 15 and pass them on to the portable service system 16. It will have several different input plug capabilities to provide connection to a wide range of processors and technologies. A special code, which includes search parameters etc., will be written in the portable service system 16 to handle gathering and formatting data from the adapter 11.

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