8.4.6.8.4 Device Selection Flags

To control the QSPI frames, the following flags showing the state of the device selection are available in QSPI_ISR:

CSR and CSRA indicate when a rising edge of QCS has been detected. CSRA is automatically cleared when a QCS falling edge is detected.
CSF and CSFA indicate when a falling edge of QCS has been detected. CSFA is automatically cleared when a QCS rising edge is detected.

Figure 8-164. Device Selection Flags

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