| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a header conversion circuit that can easily confirm whether or not a packet is transferred normally. SOLUTION: A downstream interface circuit 2 transfers a DN reception packet 101 to an upstream interface circuit 3 as an UP transmission packet, after being subjected to header conversion by a header conversion circuit 1. The upstream interface circuit 3 transfers an UP reception packet 104 to a downstream interface circuit 2 as a DN transmission packet 102, after being subjected to header conversion by the header conversion circuit 1. The header conversion circuit 1 stores the DN reception packet 101 and the UP reception packet 104 to its internal buffer, depending on the header conversion result. A control circuit 4 reads the DN reception packet 101 and the UP reception packet 104 stored in its internal buffer.</p> |
