The nRF7001 can be connected to the nRF5340 host either with a Quad Serial Peripheral Interface (QSPI) or a Serial Peripheral Interface (SPI). QSPI is normally the preferred option, but in cases where QSPI on the host is used for other purposes SPI can be used.
The following figure shows the connection using QSPI between nRF7001 and the host MCU (nRF5340).
The following figure shows the connections using SPI between nRF7001 and nRF5340.