Application-specific requirements tend to be more lenient then the ROM code execution requirements as improper configuration and lack of support do not result in system boot failure. The following requirements must be met for general flash applications:
- Flash device must operate in the 3.3V vicinity.
- If the flash memory is larger than 16MB (128Mb), then a flash device package with support for a RESET signal is required to prevent a device warm reset from affecting ROM code execution.
- For lower memory density flash devices that support a RESET signal, the recommended practice is connect the RESET signal.
Note: Even though there is not a hard limit imposed on the flash memory that can be used, AM263P only supports up to 4-byte addressing communication mode. As a result, any address requiring over 32 bits to reach is virtually inaccessible.