CHAPTER 7-2: VBAT Domain(A)
254 FM4 Peripheral Manual, Doc. No. 002-04856 Rev. *E
− CWRITE operation waveform
The save data is output from the buffer at a falling edge of the transfer clock and is written to the register
at a rising edge of the transfer clock.
Three transfer clocks are required for preprocessing before the start of a transfer and three transfer
clocks are also required for postprocessing after the end of a transfer.
− CREAD operation waveform
The recall data is output from the register at a rising edge of the transfer clock and is written to the buffer
at a falling edge of the transfer clock.
Three transfer clocks are required for preprocessing before the start of a transfer and three transfer
clocks are also required for postprocessing after the end of a transfer.
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