Xilinx KC705 User Manual page 65

Monitoring Voltage and Current
Voltage and current monitoring and control are available for selected power rails through
the Texas Instruments Fusion Digital Power graphical user interface. The three onboard TI
power controllers (U55 at address 52, U56 at address 53, and U89 at address 54) are wired
to the same PMBus. The PMBus connector, J39, is provided for use with the TI USB
Interface Adapter PMBus pod (TI part number EVM USB-TO-GPIO), which can be ordered
from the TI website
(downloadable from
voltage and current values for the power rail listed in
In each of these the three tables (one per controller), the Power Good (PG) On Threshold is
the set-point at or below which the particular rail is deemed "good". The PG Off Threshold
is the set-point at or below which the particular rail is no longer deemed "good". The
controller internally OR's these PG conditions together and drives an output PG pin high
only if all active rail PG states are "good". The On and Off Delay and rise and fall times are
relative to when the board power on-off slide switch SW15 is turned on and off.
Table 1-31
UCD9248 PMBus controller at Address 52 (U55).
Table 1-31: Power Rail Specifications for UCD9248 PMBus controller at Address 52
Rail Rail Schematic
Number Name Rail Name
1 Rail #1 VCCINT_FPGA
2 Rail #2 VCCAUX
3 Rail #3 VCC3V3
4 Rail #4 VADJ
Notes:
1. The values defined in these columns are the voltage, current, and temperature thresholds that will cause the regulator to shut down
if the value is exceeded.
Table 1-32
UCD9248 PMBus controller at Address 53 (U56).
Table 1-32: Power Rail Specifications for UCD9248 PMBus controller at Address 53
Rail Rail Schematic
Number Name Rail Name
1 Rail #1 VCC2V5_FPGA
2 Rail #2 VCC1V5
KC705 Evaluation Board
UG810 (v1.3) May 10, 2013
[Ref 10], and the associated TI Fusion Digital Power Designer GUI
[Ref 11]). This is the simplest and most convenient way to monitor the
defines the voltage and current values for each power rail controlled by the
1 0.9 0.85
1.8 1.62 1.53
3.3 2.97 2.805
2.5 2.25 2.125
defines the voltage and current values for each power rail controlled by the
2.5 2.25 2.125
1.5 1.35 1.275
www.xilinx.com
Table 1-31,
0 5 10 1
0 5 5 1
0 5 4 1
0 5 3 1
0 5 1 1
0 5 0 1
Feature Descriptions
Table 1-32 and Table 1-33.
(1)
Shutdown Threshold
1.15 20 90
2.07 10.41 90
3.795 10.41 90
2.875 10.41 90
(1)
Shutdown Threshold
2.875 10.41 90
1.725 10.41 90
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