G - Physics – 06 – F
Patent
G - Physics
06
F
354/230.8
G06F 9/00 (2006.01) G06F 9/24 (2006.01)
Patent
CA 1081855
Title of the Invention INITIALIZING MEANS FOR A BUS-ORIENTED DATA PROCESSING SYSTEM EMPLOYING FIRMWARE-CONFIGURED MODULES Abstract of the Disclosure In order to initialize firmware-configured modules, such as the system processor and input/output controllers, in a data processing system, a service processor is employed. The service processor, which itself normally functions as a power- ful input/output controller, includes an instruction memory comprised, at least partially, of non-volatile memory means such as a read-only memory. Upon utilization during actual start-up or when changing the configuration of the data pro- cessing system under program control, an instruction counter in the service processor is forced to a predetermined address in the non-volatile section of the instruction memory. The predetermined location contains the first instruction in a boot- strap routine by which a loader and the necessary firmware may be obtained from a diskette coupled to the service processor The firmware is then distributed among the firmware-configured modules throughout the system. When the system is configured, the service processor itself is reconfigured to function as an input/output controller for peripherals coupled to it.
271931
Kocol James E.
Schuck David B.
Ncr Corporation
Smart & Biggar
LandOfFree
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