36.2 Features

Key features of the SQI module:

  • Supports Single, Dual, and Quad Lane modes
  • Supports Single Data Rate (SDR)
  • Programmable command sequence
  • Data transfer:
    • Programmed I/O mode(PIO)
    • Buffer descriptor DMA
    • execute-In-Place (xIP)
  • Supports SPI Mode 0 and Mode3
  • Programmable Clock Polarity (CPOL) and Clock Phase (CPHA) bits
  • Supports up to two Chip Selects
  • Supports up to four bytes of Flash address
  • Programmable interrupt thresholds
  • 256-byte transmit data buffer
  • 256-byte receive data buffer
  • 4-word controller buffer