Dolphin Octa SPI Controller and PHY IP supports the fastest access frequency of 200MHz, with DDR Mode and Double Transfer Rate (DTR) Protocol enabling data transfer rates up to 400Mbps with reduced read latency, including support for Octal DDR protocol with DQS for Octal SPI devices. The Controller and PHY IP connects to a system-on-chip (SoC) host through an AMBA® APB bus for the register interface and optional DMA peripheral interface.