Hi
The LPSPI can be used in Quad data mode by configuring the WIDTH field of the transmit command register for 4-bit transfer (which can be done on a per-transaction basis).
The LPSPI pins use their data functions in this case
QSPI flash devices can usually operate in single-bit mode so the LPSPI can also operate in standard 1 bit mode with them too if the data rate is not critical.
Regards
Mark
[uTasker project developer for Kinetis and i.MX RT]
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