Any idea why it is not mentioned there?
We focus on the problem is how to use interface registers in E2PROM, can you help again, thanks.
It is the same basic answer for the 1701 as well. Coleman had answered your question in the earlier thread where you asked the same question:
I believe  what Dave suggests will be applicable for the ADAU1701.   The default n x fs" clocks shown in Table 11 in the ADAU1701 datasheet assume generating a sample processing rate of 48 kHz.   In order to support a 44.1 kHz processing and 44.1 master serial port LRCLKs, you would need to scale the input clock appropriately, such as:
64 x fs = 2.8224 MHz MCLKI
128 x fs = 5.6448 MHz MCLKI
256 x fs = 11.2896 MHz MCLKI
384 x fs = 16.8344 MHz MCLKI
Regarding the GPIO question, yes you can use DC Input blocks.  You can refer to the following application note "Using Hardware Controls with SigmaDSP GPIO Pins"
Here is an nifty example of using DC Blocks and GPIO Pins 6 to 11 for a volume meter on the ADAU1701.
The problem is for the part number is ADAU1701, could you help for this problem ASAP, thanks
I am not sure which datasheet you are looking at. The ADAU1761 datasheet serial ports are detailed on page 42 and does not mention sampling rates. If you are referring to the rates listed in the converter control register 0x4017, those rates shown are based on the base sample rate of 48 kHz. If your base rate is 44.1 kHz then all the samples rates shown will scale the same amount. 48 kHz * 0.91875 = 44.1 kHz. So they will all scale the same.
You should also read the Sampling Rates section of the datasheet. Page 27. This should help.
Regarding your question about the GPIO. I will have to look into this for you.