Do the C5509A/07/06/03 DSPs require a specific power-up sequence ?
The DSPs do not require specific power sequencing between the core supply and the I/O supply. However, systems should be designed to insure that neither supply is powered up for extended periods of time if the other supply is below the proper operating voltage. Excessive exposure to these conditions can adversely affect the long term reliability of the device. System-level concerns such as bus contention may require supply sequencing to be implemented. In this case, the core supply should be powered up at the same time as, or prior to (and powered down after), the I/O buffers.
