Quad Serial Peripheral Interface

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