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Recent content by shainky

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    if else inside generate statement

    hi, can i use if else inside generate statement? generate for (i = 0; i < my_size; i = i + 1) begin : size u_mux(.in(index[i]), .sel(idx_int[i]), .out(side[4*i +: 4])); if (i == 'd0) assign my_data[64*i +: 64] =...
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    lockup latch hold issue

    Hi Vijay82, I don't have knowledge about DFT. The only thing that I understood after reading some articles was that we use lockup latches for dft when we are stitching flops from domains where no logical paths exist. That is when this question popped in my mind.
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    do we need a fifo when read clk freq is greater than write clk freq?

    thanks ads-ee. I was looking for depth of fifo in asycn clock cases when read freq> write freq. Because the read is happening more often and we want fifo only for synchronization, i think 2 deep fifo should do, " irrespective of the read/write freq value". This is my assumption. I am not sure...
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    lockup latch hold issue

    hi, I have a case where the scan stitching needs to be done between 2 async clock domains. I know that we need negative latches as lockup latches when we stitch two posedge triggered flops from asynch clock domains. My question is, for this particular case in the figure, is the hold time meeting...
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    do we need a fifo when read clk freq is greater than write clk freq?

    how would we determine the depth of fifo in that case? Taking the same example, "my read freq is 200Mhz and write freq is 100Mhz. and bytes are written and read at 1 byte per cycle." A burst of say 8 bytes is the max load that can come on the write side. Can i just work with a two deep fifo?
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    doubts in digital design concepts

    answer of 1) https://asicdigitaldesign.wordpress.com/2008/03/07/cyclic-combinational-circuits/
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    do we need a fifo when read clk freq is greater than write clk freq?

    As i said, my read freq is 200Mhz and write freq is 100Mhz. and bytes are written and read at 1 byte per cycle. Cant we work with just a synchronized enable signal which will enable read at every second cycle? why do i really need a fifo?
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    do we need a fifo when read clk freq is greater than write clk freq?

    Hi sharath666, My question is, of the write clock frequency is 100mhz and read clock freq is 200Mhz. The data is written and read at 1 byte per cycle, do we still need a fifo in case 1) when clocks ate synchronous and 2) when clocks are async
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    doubts in digital design concepts

    hi ads-ee, No they are not from my homework :smile: I am studying and trying to learn digital design concepts at my own. I am referring to many books, blogs and sites to grab this basic understanding. Apart from certain rtl coding doubts, which i could resolve at my own, I was facing issues in...
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    do we need a fifo when read clk freq is greater than write clk freq?

    hi, Do i need a fifo when my read freq is greater than write freq when 1) clocks are synchronous? 2) clocks are asynchronous?
  11. S

    doubts in digital design concepts

    Hi All, I am facing difficulty in understanding certain concepts. Could you please clarify my following doubts: 1) Is there any example of having an intentional combo loop in design? Can combo loops be useful? How does synthesis tool and gate level simulation act on combo loop. How do we meet...
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    do functions synthesize to combinational logic?

    hi, I have a module which is such that module code3b (o, a, nrst, en); output o; input a, nrst, en; reg o; always @(a or nrst or en) o = latch(a, nrst, en); function latch; input a, nrst, en; if (!nrst) latch = 1'b0; else if (en) latch = a; endfunction endmodule Will this infer a latch or a...
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    what are the steps to design Opamp as a fresher

    u may also refer to CMOS Circuit Design,Layout, and Simulation by R Jacob Baker :)
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    OpAmp design for SC-integrator

    project on opamp as integrator The circuit should work. The W/L variation can also be done in simple multiples of 50/2 or so. For a 1st order design, you can take the parameters as: 1)SR = 10 V/usec 2)Av = 5000 V/V 3)GB = 5 MHz 4)CL = 10 pF 5)Pdiss < 0.3 mWatt 6)ICMR+ = 1.5 Volt 7)ICMR- = 0.2 Volt

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