Bus system and bridge circuit connecting bus system and connection apparatus

摘要

A bus system includes: a first connection apparatus and a second connection apparatus carrying-out an exchange in accordance with a predetermined protocol; a bus through which the first and second connection apparatuses are connected to each other; and a bridge inserted between the first connection apparatus and the bus, and carrying out an exchange with the second connection apparatus in accordance with the predetermined protocol instead of the first connection apparatus when receiving a disconnection instruction for the first connection apparatus.

主权项

1. A bus system, comprising:
a first connection apparatus and a second connection apparatus configured to carry out an exchange in accordance with a predetermined protocol; a bus that connects said first and second connection apparatuses; and a bridge, between said first connection apparatus and said bus, configured to carry out an exchange with said second connection apparatus in accordance with the predetermined protocol instead of said first connection apparatus when the bridge receives a disconnection instruction for said first connection apparatus, wherein said first connection apparatus is configured to execute a leading role in the exchange with said second connection apparatus, and said second connection apparatus is configured to passively operate during the exchange with said first connection apparatus, and wherein when said bridge receives the disconnection instruction for said first connection apparatus, said bridge stops an issuance of a command from said first connection apparatus, and permits reception of an input from said second connection apparatus.