STMicroelectronics demonstrated a MIPHY (Multi Interface PHY) Physical Layer interface for the 6 Gb/s SATA (Serial Advanced Technology Attachment) Technology. Physical Layer macro-cells perform the high-speed serialization and de-serialization of data to and from the disk and provide a 20-bit-wide parallel interface to the link layer. SATA is the most popular interface for hard disk drives (HDD) and the ST demonstration coincided with the official announcement by the SATA International Organization (SATA-IO) of the new specification, which doubles the maximum data transfer speed from 3 Gb/s to 6 Gb/s. ST's 6 Gb/s SATA PHY is an IP (Intellectual Property) block designed to be integrated with other functions into low power System-on-Chip (SoC) devices supporting 1.5 and 3 Gb/s as well as 6 Gb/s SATA HDDs for mobile and desktop computing applications.