Arbitration system using linked table

Details Arbitration system using linked table Arbitration system using linked table

1997-04-18

1999-02-23

Ray, Gopal C.

Multiplex communications

Wide area network

Packet switching

370447, G06F 1336, G06F 13362

Patent

active

058753095

ABSTRACT:
A computer network system containing a concentrator with a backplane that has a plurality of lines. The backplane contains data lines and control lines for managing and organizing the transfer of data between modules in the concentrator. The system contains an intelligent bus arbiter system that allow the selection of transmitting modules to occur at the same time as actual data transfer is going on between other modules. The bus arbitration system is provided for determining a sequence of bus access. A memory is provided for building a table comprising entries. Each of the entries represents a module slot identification number. Each entry also has an entry link portion which links a given entry to another entry. The system also includes arbiter logic cycling through or sequencing through and reading the table from one entry to another entry based on the entry link portion. The arbiter logic forms an output of a current slot identification number, corresponding to the module which is to have access to the bus. With this system, the number of entries having a particular module slot identification number relative to the total number of entries in the table determines a proportion of access to the bus of the module having the particular module slot identification number thereby allowing updating to the table to change access to the bus more readily.

REFERENCES:
patent: 4803681 (1989-02-01), Takahashi
patent: 5481680 (1996-01-01), Larson et al.
patent: 5485586 (1996-01-01), Brash et al.
patent: 5564025 (1996-10-01), De Freese et al.
patent: 5708783 (1998-01-01), Yazdy

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