Article ID: 000086787 Content Type: Troubleshooting Last Reviewed: 06/13/2017

What are the I/O guidelines for connecting the Stratix 10 SmartVID PMBus signals to an external power device ?

Environment

  • Intel® Quartus® Prime Pro Edition
  • Smart Video Controller Intel® FPGA IP
  • BUILT IN - ARTICLE INTRO SECOND COMPONENT
    Description

    The Stratix® 10 SmartVID feature complies with PMBus 1.3, which supports 1.8V I/O only. A level shifter is required if you use other PMBus devices such as PMBus 1.2, which support 3.3V I/O. PMBus 1.3 devices comply with the corresponding electrical drive levels as given in the SMBus3.0 specification.

    The Stratix 10 PWRMGT_SDA and PWRMGT_SCL signals should be connected to a power device with external pull up resistors to 1.8V. The Ipullup is specified from 100uA and 350uA in the SMBus3.3 specification. The Stratix 10 development kit uses 10-K Ohm pull up resistors to 1.8V. 

    Related Products

    This article applies to 2 products

    Intel® Stratix® 10 FPGAs and SoC FPGAs
    Intel® Enpirion® Power Solutions

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