| 摘要 |
In an asynchronous transfer mode (ATM) switching arrangement buffer memory capacity is effectively and efficiently increased by employing a pluralit y of circuit cards including a master circuit card and a plurality of so-called slave circuit cards including additional buffer memory and an internal cell format in which al l of the ATM cell routing information is supplied directly to the master circuit card . Then, the master circuit card utilizes the ATM cell routing information to contr ol writing and reading of data to and from its buffer memory locations and the buff er memory locations of each of the plurality of slave circuit cards. This control o f the plurality of slave circuit cards requires only unidirectional communications lin ks to pass the control information from the master circuit card to the slave circuit c ards.
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