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Forum Post: DAC80504: DAC80504 data interface write time sequence

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Part Number: DAC80504 Hi team, When I use DAC80504 EVM software to configure DAC80504 EVM board, I use DSO to observe waveform of SPI interface. I observe there is a clock cycle before actual write cycle and an echo after write cycle. What does this waveform mean? Do I need to program this clock in the actual application? 1. Write Yellow: Clock Green: Dout Red: Din First Clock, do not know what's this clock the meaning Second cycle, Din a signal, write a register Third cycle: Dout echo what second cycle write

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