DEVICE FOR CONTROLLING CELL FLOW AND ASYNCHRONOUS TRANSFER MODE SWITCHING SYSTEM USING THEREOF

摘要

PURPOSE: An ATM(Asynchronous Transfer Mode) switching system using a cell flow control device is provided to firstly control buffers of an input terminal, and to intercept a cell flow incoming to shared buffers of an output terminal. CONSTITUTION: Many input buffers(311-31N) receive cells inputted from many input lines, and temporally store the received cells. A nonblocking self rooting unit(320) receives the cells to root the cells as a switch output. A shared buffer(330) prevents a cell loss caused by an output blocking. Many output line interfaces(341-34N) interface the cells outputted from an exterior. A cell flow controller(350) receives input/output cells from the many input buffers(311-31N) and the shared buffer(330), and controls a cell flow control signal to the many input buffers(311-31N).