M31 SD (Security Digital) and eMMC (embedded MultiMedia Card) IOs are nonvolatile memory interface technology with high bandwidth capabilities, which is particularly developed for flash storage applications. M31 provides a silicon-proven SD/eMMC IO in different process nodes. The SD/eMMC IO complies with interface specifications of SD Association and JEDEC to provide both SDR104 (SD IO) and HS400 (eMMC IO) high-speed modes. The SD/eMMC IO solutions are also available at 40nm, 28nm, and 22nm technology process.