The xSPI functional block is a controller interface to enable communication with SPI slave devices compliant to the JEDEC JESD251 standard.

This master interface provides a low pin count connection to off-chip single, dual, quad, or octal SPI devices in SDR and DDR mode. The partner devices include SEMPER™ flash from Infineon (formerly Cypress), or Xccela™ from Micron and HyperBus devices such as HyperFlash (NOR flash) and HyperRAM to name a few.