Team,
Several GPIOs support the input qualification feature, see datasheet chapter 5.9.6.2 GPIO - Input Timing. Is this feature available for GPIO21 when used as 'McBSP-A receive data' ? So that the McBSP input goes through the qualification first before used by the McBSP.
Looking at Figure 4-35 in the TRM I would say yes. Qual is happening before the GPAMUX. But please confirm that this is true.
Thanks,
Robert