| 摘要 |
PURPOSE: To gain efficient access to stored data in a connection table by greatly reducing the memory amount needed to constitute the connection table. CONSTITUTION: An entry as to a data transaction(DT) is stored in the connection table 61 and access from it is gained. A DT on a bus is discriminated by using 1st reference. The DT can be discriminated additionally by using 2nd reference. When the DT is discriminated only by the 1st reference, the entry as to the DT is stored in a 1st part 62 of the connection table. The entry in the 1st part is indexed by using the 1st reference as to the DT. When the DT is discriminated by using both the 1st reference and 2nd reference, the entry as to the DT is stored in a 2nd part 63 of the connection table. The entry in this 2nd part is indexed by using not the 1st reference, but the numeral of the 2nd reference as to the DT.
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