The Serial Peripheral Interface (SPI)/Quad Serial Peripheral Interface (QSPI) slave interface is compatible with the nRF52, nRF53, and nRF91 Series SPI/QSPI master interface.

The main features of the QSPI slave interface are:

  • Single/quad SPI input/output
  • Supports up to 32 MHz clock frequency
  • Single and block mode read/write accesses
  • On-the-fly encryption and decryption