Xilinx VCU1287 User Manual page 16

Table 3-1: Onboard Power System Devices (Cont'd)
Device Part Reference
Number Designator
Maxim MAX15027
The output voltages of the Max15301 can be reprogrammed using the Maxim InTune Digital Power
CAUTION!
Tool [Ref 5]. However, extreme caution must be taken when attempting to modify any of the onboard
regulators. An incorrectly programmed regulator can damage onboard components.
Notes:
1. The MAX20751EKX device has limited nonvolatile memory reprogramming saves (four counts).
Using External Power Sources
Callout 19, Figure 2-1
Each voltage rail for the FPGA logic and MGT transceiver has an associated Euro-Mag
spring-clamp terminal block that can be used to provide power from an external source
(Table 3-2).
Do NOT apply power to any of the FPGA logic external power supply connectors without
CAUTION!
first disabling the associated regulator or regulators. Failing to disable the regulator can damage the
board.
Each onboard FPGA logic regulator can be disabled using its respective power regulation
inhibitor dip switch (callout 18,
regulation inhibitor switch is set to the ON position.
connections for the different power rails.
Table 3-2: FPGA Logic and MGT Transceiver Rails
FPGA Logic
GTH Transceiver
VCU1287 Characterization Board
UG1121 (v1.0) December 11, 2015
U25 Fixed LDO regulator
Figure
Power Rail Net External Supply
Name Connector (s)
VCCINT
VCCAUX
VCCBRAM
VCCO_HP
VCCO_HR
MGTAVCC_R
MGTAVTT_R
MGTVCCAUX_R
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Chapter 3:
Description
2-1). A regulator is disabled when the power
Table 3-2
Power Regulation
Jumper
J22
J23
J25 J20
J19
J18
J15
J26 J16
J17
Board Component Descriptions
Power Rail Net
Voltage
Name
VCC_1V8
shows a list of external power
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1.8V
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