A method of matching between a central processing unit and a packet-bus processor for packet exchange in an electronic switch

摘要

The present invention relates to a method of matching between a central processing unit board (MPMA) and a packet bus processor board (PBIA) requested to realize a packet exchange, comprising a first step (11 to 19) of initializing a PBIA and a common memory A second step (21 to 24) of transmitting an MPMA packet frame when a packet frame transmission request is received from the user, and a second step (21 to 24) of receiving a packet frame reception request interrupt from the PBIA, A fourth step 31 to 38 of transmitting a PBIA side frame when a packet frame transmission request is received from the MPMA, a fifth step 41 to 46 of receiving a PBIA side frame when a reception request is received, And when the interrupt is received by the chip, it is performed by the sixth step (51 to 55) of processing the receive interrupt.