AMD Xilinx ZCU670 - Page 56

At power on, the system controller detects if an FMC module is installed on J28:
• If no card is aached to the FMCP connector, the VADJ voltage is set to 1.8V.
• When an FMC card is aached, its IIC EEPROM is read to nd a VADJ voltage supported by
both the ZCU670 board and the FMC module, within the available choices of 0.0V, 1.2V, 1.5V,
and 1.8V.
• If no valid informaon is found in an FMC card IIC EEPROM, the VADJ_FMC rail is set to 0.0V.
The system controller user interface allows the FMC IPMI roune to be overridden and an
explicit value can be set for the VADJ_FMC rail. Override mode is useful for FMC mezzanine
cards that do not contain valid IPMI EPROM data dened by the ANSI/VITA57.1 specicaon.
ZCU670 MSP430 System Controller
[Figure 2, callout 19]
The ZCU670 board includes an on-board MSP430 (U38) with integrated power advantage
demonstraon and system controller rmware. A host PC resident system controller board user
interface is provided on the ZCU670 Evaluaon Board website. The board user interface allows
the query and control of select programmable features such as clocks, FMC funconality, and
power system parameters. The ZCU670 website also includes the ZCU670 System Controller GUI
Tutorial (XTP698) and ZCU670 Soware Install and Board Setup Tutorial (XTP699).
These steps briey summarize these instrucons.
1. Ensure that the Skyworks Soluons, Inc. (SiLabs) VCP USB-UART drivers are installed Silicon
Labs CP210x USB-to-UART Installaon Guide (UG1033).
2. Download the board user interface host PC applicaon from the board documentaon
website.
3. Connect the micro-USB cable to the ZCU670 USB-UART connector (J24).
4. Power-cycle the ZCU670.
5. Observe that SYSCTLR LED0 (DS9) blinks and LED1 (DS10) is illuminated.
Chapter 3: Board Component Descriptions
UG1532 (v1.0) March 30, 2022 www.xilinx.com
ZCU670 Board User Guide 56
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