The recommended power-up sequence is to apply VDD (1.2V) first, followed by VIO (1.8V or 3.3V) and then the clock signal. This ensures proper device operation and prevents latch-up.
To configure the EMIF for optimal performance, ensure that the memory clock frequency is set to 1/2 or 1/4 of the CPU clock frequency. Also, adjust the EMIF timing parameters (e.g., CAS latency, RAS-to-CAS delay) based on the specific memory module used.
The maximum allowed clock skew between the CPU clock and the EMIF clock is 1.5 ns. Exceeding this limit may cause data corruption or system instability.
Implement a reset mechanism using a dedicated reset pin (e.g., RESETn) and ensure that the reset signal is asserted for at least 10 clock cycles to guarantee a clean reset. Also, consider using a power-on reset (POR) circuit to ensure a reliable reset during power-up.
To ensure reliable operation, maintain a junction temperature (TJ) below 125°C. Use thermal design guidelines (e.g., thermal vias, heat sinks) to minimize thermal resistance and ensure adequate heat dissipation.