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In user guide of ASMI Parallel IP core (document UG-ALT1005 2018.05.15)
In figure 9 : Fast Reading Multiple-Byte
signal Busy goes to '1' on rising edge of clkin and back to '0' on falling edge of clkin .
generally the same phase of the clock cause change on signal ?
In figure 19 : command 4BYTEADDREN
signal Busy goes to '1' on rising edge of clkin and back to '0' on rising edge of clkin .
I need to know on which phase of clkin signal busy change in order to know which phase of clkin to use in my logic for sampling the signal busy ?
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Hi,
You can use both of these condition.
However, my strongly recommendation for sampling the busy signal is Busy signal goes to '1' on rising edge of clkin and Busy signal goes to '0' on falling edge of clkin.
In addition, when the busy signal goes to ‘0’, please allow two clock cycles before sending a new signal.
Thanks.😉 😉

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