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Intel: It seems that DCLK continues to be output even after AS configuration is completed, but when accessing the configuration ROM using ASMI IP during user mode, which one is used, clkin or DCLK input to the IP? Is it?
Category: Configuration/Programming
Tools: Quartus® Prime
Device: Cyclone® IV
In S configuration, internal clock is used for DCLK, and clkin input to ASMI is used when accessing ROM with ASMI.
If the nCSO is disabled when the clock switches, it prevents the ROM from malfunctioning.
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