Power Up Sequencing Requirements - SMART Embedded Computing MVME2500 Installation & Use Manual

Functional Description
Functional Description
4.15.2

Power Up Sequencing Requirements

The power up sequence describes the voltage rail power up timing, which is designed to
support all the chip supply voltage sequencing requirement.
The backplane contains three power supplies, +12V, -12V and +5V. The +12V is assigned
to PMC/XMC sites only, while the +5V and below are assigned to different voltage levels to
support all the voltage requirements on the board. Each voltage rail is controlled by FPGA
and sequenced to provide correct voltage sequencing requirements.
When the 1.5V is Good, it means that all the DC-DC power is Good.
The following figure describes the detailed power up sequence of the board from +5V (main
source from backplane) up to the 1.5V Power Good.
80 MVME2500 Installation and Use (6806800L01S)