The ADAU1452 SPI burst mode writing, should we add wait time between successive word transfers ?
In the initialization sequence, when the host writes data via SPI in the burst mode, the ADAU1453 does not work normally.
If I set the SCLK frequency to 50KHz or less, it works normally.
On the other hand, when I wrote the program and register data from the PC on the Sigma Studio, I probed the SPI signals and observed the waveform.
Then there were small wait time ( the SCLK stopped a while ) between successive word transfer, I found.
It seems that we can transfer data without wait as the following Figure 36
I cannot find any specification about it in the data sheet.
But are there any limitations or specifications when we use the SPI burst writing ?
ADAU145x date sheet ( rev. C )
Page 14 SPI Interface—Slave
Page 39 Figure 36. SPI Slave Write Clocking (Burst Write Mode, N Bytes)