11
Timing Sequence
The following diagram indicates the typical timing for the Power-up sequence of the engine.
Notes:
1. In the diagram above, it takes about 400ms for the engine to power up:
A
- time needed to choose the
boot mode;
B
- time needed to boot the kernel;
C
– time needed to initialize decoder chip.
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.
Summary of Contents for NLS-EM3296
Page 1: ...NLS EM3296 OEM Scan Engine Integration Guide...
Page 6: ......
Page 14: ...8 Bottom View unit mm...
