In the ADSP-BF52x Data Sheet for the 289 CSP_BGA pin assignments, pins T17 and U17 are shown as VDDext.
In the ADSP-BF527 EZ-Kit Lite schematic they are named "EVDD_VREG" and "EVDD_VREG_N" and are connected to the 3.3V regulator output.
What is the function of these pins?
Also, one of the ground pins is connected to gound through a 10K resistor (GND54 on pin T22). What is the purpose of this?
Are these for compatibility with another version?