The Avalon® Streaming (Avalon® -ST) interface accommodates the development of high-bandwidth, low-latency components for Platform Designer systems, and provides component designers with a framework to create interfaces that support the unidirectional flow of data, including. The Avalon® Streaming (Avalon® -ST) interface accommodates the development of high-bandwidth, low-latency components for Platform Designer systems, and provides component designers with a framework to create interfaces that support the unidirectional flow of data, including. Avalon Interface Specifications - Avalon interfaces simplify system design by allowing you to easily connect components in Altera FPGAs. The Avalon interface family defines interfaces appropriate for streaming high-speed data, reading and writing registers and memory, and controlling off-chip. SPI Agent/JTAG to Avalon Host Bridge Cores Revision History 5. Channel Specific LayerInterface Properties. An Avalon® interface (port) is a group of signals that are used collectively to implement a Platform Designer interface. Simulating the Example Design 2.