KCU1250 User Guide
13
UG1057 (v1.0) December 19, 2014
Chapter 1:
KCU1250 Board Features and Operation
Using External Power Sources
Each power rail for the FPGA logic and MGT transceivers has an associated Euro-Mag
spring-clamp terminal block (callout 18,
), which can be used to provide power
from an external source (
CAUTION!
Do NOT apply power to any of the FPGA logic external power supply connectors without
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 17,
). A regulator is disabled when the power
regulation inhibitor switch is set to the on position.
lists external power
connectors for the different power rails.
Table 1-3:
FPGA Logic and MGT Transceiver Rails
Power Rail
Net Name
External Supply
Connector
Power Regulation
Jumper
FPGA Logic
V
CCINT
J25
J22
V
CCAUX
J23
V
CCBRAM
J20
V
CCO_HP
J19
V
CCO_HR
J18
MGT Transceiver
MGTAVCC
J26
NA
MGTAVTT
NA
MGTVCCAUX
NA
Notes:
1. The MGT power module must be removed before providing external power to
any of the transceiver rails (see