EDM1-IMX6 HARDWARE MANUAL
– VER 1.00 – NOV 14 2019
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3.17.2. Power Sequencing for AT based configurations
EDM1-IMX6 input power sequencing requirements for AT based configurations are as follow:
If a backup RealTime Clock (RTC) is required in the host system. We recommend to design an RTC
circuit on the EDM carrier board. For example the Maxim Integrated connected over the general
purpose I
2
C can be used.
Start Sequence:
VCC_RTC must come up at the same time or before VCC comes up.
Stop Sequence:
VCC must go down at the same time or before VCC_RTC goes down
Table 38 - Input Power Sequencing for AT based configurations
Item
Description
Value
T1
VCC_RTC rise to VCC rise
≥ 0 ms
T2
VCC fall to VCC_RTC fall
≥ 0 ms
Figure 12 - Input Power sequence for AT based configurations