Those resistors are zero ohm resistors and are provided in case you want to measure the current. Then you can remove them and measure the current. If you want to design your own custom board and have no plan to measure the current, you can remove the resistors and ties those pins directly to their correct voltages (VDDEXT or VDDINT).

Note: The correct answer is below by Greg. Please ignore this response.

In order to find the power requirements for ADSP-21371 DSP you should look in:

EE-318 - Estimating Power Dissipation for ADSP-21371 SHARC® Processors

Power consumption and DSP power calculation all depends on your applications. One application might use 5 times more current than another application. It also depends on the core CLOCK. You can not have a fix number number for current for all applications. So in order to design your power supply, you should consider the worst case in your case. As you said, the datasheet mentions the TYP (typical) current and max current can not really be defined. EE-318 will give you a good idea on how to calculate the power and current. If your calculation shows that you will need 400 mA, it is always safe to add 50% to that in designing your ower supply. In this case, the worst case in your design is also covered. VDDEXT is also the same. It depends how many IOs are used in DSP and how much current you are drawing from the DSP. Please let us know if you still have problem and need more help.

Yes, in lower core CLK frequencies, power consumption will be lower. Design your power supply so it can deliver 30% more than your circuit consumes so you will be on the safe side. Do the same thing for the VDDEXT