For systems where there is a clear single host device and other processors and accelerators operate as slave devices, embedded computer is a good choice for connectivity. However, for connecting many processors together in more complex systems, embedded computer has significant limitations in topology and support for peer-to-peer connectivity.
Many developers are looking to leverage Ethernet as a solution for connecting processors in embedded computers. Ethernet has evolved significantly in the past 35 years. Similar to the increase in computer processing speeds, its peak bandwidth has grown steadily. Currently available Ethernet Network Interface Controller (NIC) cards can support 40 Gbps operating over four pairs of SERDES with 10 Gbps signaling. Such NIC cards contain significant processing on their own to be able to transmit and receive packets at these speeds.
refer to: http://embedded-computing.com/articles/rapidio-optimized-low-latency-processor-connectivity/#at_pco=cfd-1.0
沒有留言:
張貼留言