diff --git a/lib_xua/src/core/ports/audioports.xc b/lib_xua/src/core/ports/audioports.xc
index cc9ce57b..d6e85d3a 100644
--- a/lib_xua/src/core/ports/audioports.xc
+++ b/lib_xua/src/core/ports/audioports.xc
@@ -78,6 +78,7 @@ void ConfigAudioPorts(
         configure_out_port_no_ready(p_lrclk, clk_audio_bclk, 0);
     }
 
+#if (I2S_CHANS_ADC != 0)
     if(XUA_PCM_FORMAT == XUA_PCM_FORMAT_TDM)
     {
         for(int i = 0; i < I2S_WIRES_ADC; i++)
@@ -85,6 +86,7 @@ void ConfigAudioPorts(
             set_port_sample_delay(p_i2s_adc[i]);
         }
     }
+#endif
 
 #elif (CODEC_MASTER)