Communications: electrical – Digital comparator systems
Patent
1975-03-26
1977-02-01
Dildine, Jr., R. Stephen
Communications: electrical
Digital comparator systems
G06F 100
Patent
active
040064662
ABSTRACT:
An input/output data processing system includes a plurality of active modules, a plurality of passive modules and at least one memory module and a system interface unit having a plurality of ports, each of which connect to a different one of the modules. Each module connects to one of the ports by a plurality of different interfaces. The active modules include an input/output processing unit for processing interrupts and executing command sequences and a multiplexer unit for directly controlling transfers between the memory module and any one of the peripheral devices coupled to different ones of a plurality of ports of the multiplexer unit. Different ones of the modules of the system include the programmable interface used for transferring command information to the multiplexer unit and to the devices associated therewith for enabling a different type of control to proceed in parallel with input/output data transfer operations. Each multiplexer unit includes a plurality of storage registers which are operatively coupled to the programmable interface associated therewith for receiving control information therefrom designating the priority to be given by the unit to the processing of different types of interrupt signals received from devices associated therewith in addition to information designating which one of a set of processing routines to be used in servicing the interrupt.
REFERENCES:
patent: 3386083 (1968-05-01), Geller et al.
patent: 3399384 (1968-08-01), Crockett et al.
patent: 3905025 (1975-09-01), Davis et al.
patent: 3925766 (1975-12-01), Bardotti et al.
Calle Jaime
Monahan Earnest M.
Patterson Garvin Wesley
Shelly William A.
Dildine, Jr. R. Stephen
Driscoll Faith F.
Honeywell Information Systems Inc.
Reiling Ronald T.
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