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Recent content by boku

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    multiple scan clock domain synthesis and ATPG problem

    Dear all, I've faced some problems in synthesis and atpg for 2 scan clocks. My situation is: 1. The top includes other non-scanable blocks such as ROM, analog, test mode entering logic. 2. Scan test mode can be entered only after a specific sequences of 3 pins (T1,T2,T3) 3. Two scan clocks...
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    Question about low frequency SDRAM controller design

    Thank you very much. You mentioned about the refresh issue. If the sdram I use is 64ms, 8192-cycles refresh time and my clock freq is 30 MHz, does it mean that the sdram controller needs to refresh every (64,000,000/8,192)ns/(1000/30)ns=234 cycles averagely??
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    Question about low frequency SDRAM controller design

    About SDRAM's CLK Hello, I'd like to design the sdram controller. After surveying the current SDRAM frequency, the most common is 100/133MHz. What if my design doesn't run in such high freqency. It's only 60 MHz or 30 Mhz in my design. So can I just use low clock freq into SDRAM module's CLK...

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