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DDC264: No DOUT output was generated during the first inititalization.

Part Number: DDC264

  No DOUT output when I operate Configuration register write and read in the first time.But I can get the correct feedback data after doing the same operation again.

For simulating inititalization sequence,I will cut off CLK shortly and Activate CLK  500us before start Configuration register write and read operations.

Improtant parameter:  tRST:30us CLK: 4MHz; DCLK:2MHz; Activate DCLK after write Configuartion register and delay 5us; tWTWR: 256*0.5=128us with format = 0; tWTRST: 15us; CONV always keep low;

First Configuartion register write and read:

Second Configuartion register write and read:

May I miss something?