Vadj_Fmc Power Rail; User I/O; Power And Status Leds - Xilinx VCK190 Series User Manual

VADJ_FMC Power Rail

The VCK190 evaluation board implements the ANSI/VITA 57.4 IPMI support functionality. The
power control of the VADJ_FMC power rail is managed by the ZU4 U125 System Controller. This
rail powers both FMCP HSPC J51 and J53 VADJ pins, as well as the XCVC1902 U1 VCCO on the
FMCP interface banks 706, 707, and 708. The valid values of the VADJ_FMC rail are 0, 1.2V, or
1.5V. At power on, the System Controller detects if an FMC module is installed on J51 or J53.
The following sequence of actions then take place:
• If no card is attached to a FMCP connector, the VADJ_FMC voltage is set to 1.5V
• When an FMC card is attached, its IIC EEPROM is read to find a VADJ voltage supported by
both the VCK190 board and the FMC module, within the available choices of 0, 1.2V, or 1.5V
• If no valid information is found in an attached FMC card IIC EEPROM, the VADJ_FMC rail is
set to 0.0V
The System Controller user interface allows the FMC IPMI routine to be overridden and an
explicit value can be set for the VADJ_FMC rail. The override mode is useful for FMC mezzanine
cards that do not contain valid IPMI EPROM data defined by the ANSI/VITA 57.4 specification.

User I/O

[Figure 3, callout 22 and 23]
The VCK190 board provides these GPIO bank 306 user and general purpose I/O capabilities:
• Four user LEDs (callout 22)
GPIO_LED[0:3]: DS6, DS5, DS4, DS3
○
• 4-position user DIP switch (callout 23)
GPIO_DIP_SW[0:3]: SW6
○
• Two user pushbuttons and CPU reset switch (callouts 24 and 25)
GPIO_PB[0:1]: SW4, SW5
○
The detailed ACAP connections for the feature described in this section are documented in the
VCK190 board XDC file, referenced in

Power and Status LEDs

[Figure 3, callout 29]
The following table defines the power and status LEDs. For user-controlled GPIO LED details,
see User I/O.
UG1366 (v1.0) January 7, 2021
VCK190 Board User Guide
Chapter 3: Board Component Descriptions
Appendix B: Xilinx Design Constraints.
www.xilinx.com
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