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    Navigation: All forums > Cores > Message List > Message Post

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    From: Richard Herveille<richard@h...>
    Date: Mon Apr 30 20:43:15 CEST 2007
    Subject: [oc] I2C SR Question
    Top
    The 'ack' in the example below is the wishbone acknowledge.
    It is not the i2c acknowledge.

    Richard


    -----Original Message-----
    From: cores-bounces@o... [mailto:cores-bounces@o...] On
    Behalf Of digitalhomesolutions@c...
    Sent: Monday, April 30, 2007 11:19 PM
    To: cores@o...
    Subject: [oc] I2C SR Question

    Since the following code from the test bench looks for the ack to go low
    when does bit 7 of of the status register get set to high?
    Thanks,
    Steve

    // wait for acknowledge from slave
    while(~ack) @(posedge clk);

    // negate wishbone signals
    #1;
    cyc = 1'b0;
    stb = 1'bx;
    adr = {awidth{1'bx}};
    dout = {dwidth{1'bx}};
    we = 1'hx;
    sel = {dwidth/8{1'bx}};
    d = din;
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    ReferenceAuthor
    [oc] I2C SR QuestionDigitalhomesolutions

     
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