problem in receiving data

Hello,

we have interfaced ADSP 21060 to AD1836 in our designed board.we are 
transmitting lookup table(48 samples) to generate 2Khz sinewave at 
DAC output.And output of this DAC,looping it back to ADC.At both DAC 
and ADC
we are getting 2khz sinewave. I need to read back the values from ADC
(which is connected to Receive pin of ADSP 21060) using interrupt 
method.I tried to read back those values,but i am not getting valid 
data.there is loss of data(missing samples)we have implemented in TDM 
mode of operation.

The settings of SPORT and Codec are:

	*(int *)SRCTL0=0x00;  
	*(int *)STCTL0=0x00;  
	*(int *)STCTL0=0x001802F0;
	*(int *)SRCTL0=0x078c12F0;
	*(int *)STCTL0=0x001c02F0;
		*(int *)MTCS0=0x00000000;
	*(int *)MRCS0=0x00000000;
	*(int *)MTCS0=0x000000FF;
	*(int *)MRCS0=0x000000FF;
		command_SPI(0xD280);  //ADC control reg2 command word
	command_SPI(0xD280);  //ADC control reg2 command word

	command_SPI(0x0390);  //DAC control reg1 command word
	command_SPI(0x0390);  //DAC control reg1 command word
	command_SPI(0x1008);  //DAC control reg2 command word

	command_SPI(0x23FF);         //volume control1 register
	command_SPI(0x33FF);         //volume control2 register
	command_SPI(0x53FF);         //volume control4 register
	command_SPI(0x63FF);         //volume control5 register
	command_SPI(0x73FF);         //volume control6 register

	command_SPI(0x8800);  //ADC peak level data register1
	command_SPI(0x9800);  //ADC peak level data register2
	command_SPI(0xA800);  //ADC peak level data register3
	command_SPI(0xB800);  //ADC peak level data register4
	please let me know what is problem?
thanking you,
smitha