Interconnection Structures: Time-Shared Common Bus and Multiport Memory

1. Interconnection structures • Different physical forms of interconnection network are • Time shared common bus • Multiport memory • Cross bar switch • Multistage switching network • Hypercube system

2. Time shared common bus

3. No. of processors connected through a common path to a memory unit • Only one processor can communicate with the memory or another processor at any given time • Transfer operations are conducted by the processor that is in control of the bus at the time • Processor wishing to initiate a transfer must first determine the availability status of the bus, and send control signals to the destination • This system may exhibit transfer conflicts, which must be resolved by bus controller

5. Multiport memory

6. Cross bar switch