I am planning a design that will boot from a 16-bit Multiplexed NOR flash. Table 26-9 of the TRM says that pins GPMC_A[11-0] are used during setup. In my design I intend to use these pins as mux function number 4, which uses the signals as the high A27-17 pins.
The section indicates that the A27-16 lines should be held low on the flash device. If I use the above setup below, do I still need to isolate the high address bits?
If the Boot ROM code is in multiplexed mode, will it actually drive GPMC_A[11-0] pins?
Thank you in advance.
