Reset/Control Fpga; Power Management; On-Board Voltage Supply Requirement; Table 4-1 Voltage Supply Requirement - SMART Embedded Computing MVME2500 Installation & Use Manual

4.14

Reset/Control FPGA

The FPGA provides the following functions:
Power control and fault detection

Reset sequence and reset management

Status and control registers

Miscellaneous control logic

Watchdog timer

32-bit Tick Timer

Clock generator

Switch decoder and LED controller

4.15

Power Management

The MVME2500 backplane is utilized to derive +3.3V, +2.5V, +1.8V, +1.5V, +1.2V, +1.05V
voltage rail. Each voltage rail is controlled by the FPGA through an enable pin of the
regulator, while the output is monitored through power good signal. If a voltage rail fails. the
FPGA will disable each supply. To restart the system, the chassis power switch must be
power-cycled.
4.15.1

On-board Voltage Supply Requirement

The on-board power supply is considered to be out of regulation if the output voltage level
is below the minimum required power or goes beyond the maximum.
Table 4-1
Voltage Rail
+3.3V
+2.5V
+1.8V
+1.5V
+1.2V
+1.2V_SW
+1.05 V
MVME2500 Installation and Use (6806800L01S)
Voltage Supply Requirement
Voltage Rail Requirement
Minimum
3.15V
2.375
1.7V
1.425V
1.14V
1.14V
1.0 V
Functional Description
Maximum
3.45V
2.625V
1.9V
1.575V
1.26V
1.26V
1.1 V
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