The recommended power-up sequence is to apply power to the core voltage (VDD) first, followed by the input/output voltage (VDDIO), and then the clock signal. This ensures that the internal voltage regulators and clock circuitry are properly initialized.
To configure the EMIF for optimal performance, ensure that the memory timing parameters (e.g., clock frequency, latency, and burst length) are set according to the specific memory device requirements. Additionally, use the EMIF configuration registers to adjust the memory interface settings, such as the data bus width and memory type.
The maximum operating temperature range for the DM6435 is -40°C to 85°C (industrial temperature range). However, it's essential to ensure that the device is properly cooled and operated within the recommended temperature range to maintain reliability and performance.
The DM6435 has a built-in watchdog timer (WDT) that can be enabled and configured using the WDT control registers. The WDT can be used to reset the device in case of a software or hardware failure. To implement a watchdog timer, set the WDT period and enable the WDT using the WDT control registers.
The TRST pin is used to reset the device's JTAG (Joint Test Action Group) interface, which is used for debugging and testing purposes. Asserting the TRST pin low resets the JTAG interface and allows the device to be re-configured for debugging or testing.