The nRF7000 can be connected to a host with either a Quad Serial Peripheral Interface (QSPI) or a Serial Peripheral Interface (SPI). QSPI is normally the preferred option for the nRF5340 host, while SPI is used with the nRF9151 host.
The following figure shows the connection using QSPI between nRF7000 and nRF5340.
The following figure shows the connections using SPI between nRF7000 and nRF9151.