Network communications adapter

Details Network communications adapter Network communications adapter

G - Physics

06

F

354/233

G06F 15/16 (2006.01) G06F 12/14 (2006.01) G06F 13/16 (2006.01) G06F 13/26 (2006.01) G06F 15/167 (2006.01)

Patent

CA 1289673

NETWORK COMMUNICATIONS ADAPTER ABSTRACT OF THE DISCLOSURE A network communications adapter for interconnecting a plurality of digital computing resources for mutual data exchange in which a high performance, large capacity common memory is provided with a pair of external buses which allows multiple processors to store information in and read information from the common memory. The common memory is configured into two banks, each bank operating independently and concurrently under control of bus switching logic with separate address, control and data buses. The common memory typically provided 400 megabits per second of bandwidth to the multiple attached thirty-two and sixteen bit processors which may be coupled either to both buses simultaneously or individually to the two buses. The bus switching logic then allocates all of the available bandwidth to the individual processors coupled to the buses based upon a predetermined profile established at the time of system installation. Also included in the bus switch logic is circuitry for broadcasting a processor I.D., whereby only a particular processor assigned the same identifier will be afforded an access slot time during which communication over the dual bus structure can take place. one of the interconnected processors is designated is the node controller and it includes circuitry and software for implementing interprocessor interrupt handling and storage protection functions. Others of the plurality of processors coupled to the two memory buses provide input/output interfaces for host computers, digital peripheral devices, communications trunks or buses, or to wireless links for more remote communication.

544513

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