Electrical computers and digital data processing systems: input/ – Input/output data processing
Patent
1995-04-06
2000-08-01
Rinehart, Mark H.
Electrical computers and digital data processing systems: input/
Input/output data processing
G06F 300
Patent
active
06098113&
ABSTRACT:
Multiple subsystem I/O (Input/Output) buses are coupled to one or more system buses of a computer system by interface circuits which perform necessary decoding of memory space and I/O (Input/Output) space for allocation of portions of the memory space and the I/O (Input/Output) space to each I/O (Input/Output) bus. The interface circuits also translate fixed addresses within each I/O (Input/Output) bus to permit proper operation of the I/O (Input/Output) buses with the computer system. The interface circuits are programmed by the computer system to define the allocated memory spaces and I/O (Input/Output) spaces for the corresponding I/O (Input/Output) buses. Programming of the I/O (Input/Output) buses is performed at the time of system configuration by writing appropriate values into configuration registers incorporated into each of the interface circuits.
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Hawkey Jeffrey A.
Heil Thomas F.
McDonald Edward A.
Ottinger James M.
NCR Corporation
Penrod Jack R.
Rinehart Mark H.
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