Component Identification Data Retrieval Via Serial Interface
Original Publication Date: 1989-Dec-01
Included in the Prior Art Database: 2005-Jan-31
Described is a technique where component identification data of a machine are accessed through a pre-existing interface. Cards or other units may have identification data in non-volatile storage on the unit. This identification data must be reported to the system service processor. The number of signal lines that are required at the card boundary make this a difficult and costly requirement. The interface must not take a large number of pins (wires, signals) since the connection between the processor and the service processor is through a set of connectors that has a limited number of pins. By providing access to the data through a pre-existing interface, the number of I/O pins required is minimized.