Method and apparatus for deriving addresses from stored address

Details Method and apparatus for deriving addresses from stored address Method and apparatus for deriving addresses from stored address

1994-01-21

1994-12-06

Dixon, Joseph L.

Boots, shoes, and leggings

364DIG7, 3642381, 395425, 370 60, 370 61, G06F 1202

Patent

active

053718682

ABSTRACT:
A plurality of physical addresses are derived from address information stored in an address memory of a bridge or other multi-port communication device, wherein the stored address information does not directly specify all the addresses. In a first embodiment, the stored addressing information specifies a single address value from a first block of preferably consecutive address values. A processor uses the first address value to derive a second address value from a second, different block of preferably consecutive address values, and then assigns both as, e.g., port addresses. In a second embodiment of the invention, the address memory stores address information which specifies a range of preferably consecutive address values, for instance, the first and last address values of the range. A processor fetches these address values from the address memory, identifies all address values within the range, and assigns them as, e.g., port addresses.

REFERENCES:
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patent: 4637013 (1987-01-01), Nakamura
patent: 4819165 (1989-04-01), Lenoski
patent: 4922503 (1990-05-01), Leone
patent: 5060228 (1971-10-01), Tsutsui et al.
patent: 5079738 (1992-06-01), Bockenfield
patent: 5150464 (1992-09-01), Sidhu et al.

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