58.6.8.2 Suspend
The QSPI suspend procedure is as follows.
- Send a QSPI_CR.LASTXFER command.
- Wait for QSPI_SR.RBUSY = 0 and QSPI_SR.HIDLE = 1.
- Set QSPI_CR.QSPIDIS and wait for QSPI_SR.QSPIENS = 0.
- Disable the GCLK clock.
- Disable the peripheral clock.