2016_MeetingSeptember1 < P1076

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---+!! P1076 September 1, 2016 Meeting Minutes

---++!! Attendees:

   * Brent Hayhoe, Kevin Jennings, Peter Flake, Rob Gaddi, Jim Lewis, Patrick Lehmann, Jing Pang

---++!! Agenda:

%TOC%

---++ Meeting Discussion
   * [[Partiallyconnectedvectorsonportmap]] - finalization hopefully
      * Agreed that partially connected vectors should be allowed. Agreed LRM change language sounds right. Should review next week in context of [[http://www.eda-twiki.org/isac/IRs-VHDL-2002/IR2041.txt]]
      * For partially mapped vectors, usage of keyword open required, even on inputs that are initialized.
      * For input initialization, first initialization value is calculated, then any elements are used if unmapped
      * Kevin suggests that we do not define how initialization is handled but instead rely on current language rules
      * See section 14.3.5 port map aspect of elaboration
      * Use model for partially connected input?
         * Use slice of an IP, but not all of it. Some IP only use some inputs under some configurations. See below.
      * Rob will research 14.3.5 regarding the rules for initialization.
      * Lieven: Do arrays still need to be mapped contiguously? Is anyone willing to write an LCS for this?
   * Interfaces - continue & review Rob's unconstrained signals modification
      * Reviewed updated with unconstrained interface for SPI bus. See [[SpiRevised]]
*Use case - Hardmacro IP core on an FPGA with configurable interface width:*

<verbatim>inst : MGT
  generic map (
    -- ...
    INTERFACE_WIDTH => 32,
    -- ...
  )
  port map(
    -- 
    TX_Data(31 downto 0) => TX_Data,
    TX_Data(63 downto 32) => (others => '0'),
    -- ...
    RX_Data(31 downto 0) => RX_Data,
    RX_Data(63 downto 32) => RX_Data_float, -- we can't use 'OPEN' here
    -- ...
   );</verbatim>

---++ Review and Approve Meeting Minutes and Decisions by Attendees

Rob, Brent, All
---++ Review and Approve Meeting Minutes and Decisions by non-attendees

<Add your name below. Indicate if you agree or disagree>

<If you disagree, add a list of items you disagree with and initiate a reflector discussion>

Agree. -- Main.MartinZabel - 2016-10-07

---++ Next Meeting: Wednesday [[2016_MeetingSeptember7][September 7, 2016]], 11 am Pacific
---+++ Previous Meeting: Thursday [[2016_MeetingAugust25][August 25, 2016]]
Topic revision: r6 - 2020-02-17 - 15:36:18 - JimLewis
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