Power Down Timing Sequence - Newland EM3080-W-V2 Integration Manual

2. In the diagram above, D shows the reset time. If no additional operation is performed to manipulate the Reset signal, the
power-up time can be measured from the point when VDD reaches 3.3V.
3. Before powering off the engine, ensure that data transmission via its communication interface(s) is complete to prevent
transmission errors.
4. Before powering on the engine, ensure that all the signals remain low to prevent current from flowing backwards to affect
the performance of the engine.

Power Down Timing Sequence

VDD
TXD
RXD
USB_D+
USB_D-
nTRIG
nRST
Note: Before powering on the engine, ensure that signals (TXD, RXD, USB_D+, USB_D-, nTRIG, nRST) remain low to
prevent current from flowing backwards to affect the performance of the engine.
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Figure 4-5