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P5040/P5020 Reference Design Board User Guide, Rev. 0
34
Freescale Semiconductor
Architecture
Figure 16. Power connections in relation to the FPGA control
5.3.1
Power Supplies
An 1U power supply SPI4601UG (460 W) is provided in the system to support the P5040/P5020 devices,
the reference board and all its I/O cards. VCC_12, VCC_12V_BULK, VCC_5V_STBY, and
VCC_RTC_BAT are provided from the reference board. In addition, the P5040/P5020RDB PS provides
all the voltages necessary for correct operation x2 DDR3 SODIMMs, GETH, FPGA, and all onboard
peripherals.
This figure details the power supplies.
SPS
+3.3VHOT
FPGA
LDO
+1.8VHOT
1U PSU
+5 V
+3.3 V
+12 V
+5VSTB
+12V_BULK
PWRGD
PWRON
Batt.
+2.5 V
+1.8 V
+1.2 V
VSTANDBY
+3.3 V HOT
Select
LDO
LDO
LDO
+1.5VHOT
LDO
+1.1V/1.0V
SWREG
CORE/PL