Datasheet

Power Sequencing Test
2-7
Test Setup and Results
If jumper JP2 is set so that R2 is connected in parallel to R3, the core voltage
rises first during power up, i.e. prior to the I/O voltage rise, and falls second
during power down. The waveforms with this type of sequencing are shown
in Figure 2-6 and Figure 2-7.
Figure 2-6. Powering Up With Core Voltage Rising FIrst
Figure 2-7. Powering Down With Core Voltage Falling Second