The naming convention for the 5272 QSPI chip selects seems to imply that they are active high, but the note under Figure 14-4 on page 14-11 of the User's Manual says that "Chip selects are active low". Are the QSPI chip select pins active high or active low?
The QSPI Chip Select inactive level is programmable...it can be either active high or active low. This is configured with the CSIV bit (bit 12) of the QWR Register. Please refer to section 14.5.3 of the user's manual for additional information.
If I read the data book right, the inactive level applies to all QSPI chip selects, so all chip selects are active high or all are active low; you can't have one active high chip select and the rest active low. Is this right?
