Data transfer in audio codec controllers

An audio codec control method comprising:

• performing data transfer to and from an audio codec;
• performing data transfer from an external memory;
• receiving audio samples from the external memory;
• buffering the received audio samples in a data buffer;
• temporarily storing buffered audio samples in a capture register in accordance with a request from an audio codec;
• and
• transferring temporarily stored audio samples from said capture register to said audio codec independent of an operation of said data buffer in a sample order different from that of which audio samples were received from the external memory, wherein transferring audio samples from said capture register in a different order from that of which audio samples were received from the external memory includes a first audio sample being received from the external memory prior to a second audio sample being received from the external memory and the second audio sample being transferred from the capture register prior to transferring the first audio sample from the capture register.

An integrated circuit chip having audio codec control functionality, the integrated circuit chip comprising:

• first interface circuitry configured to perform data transfer to and from an audio codec;
• second interface circuitry configured to perform data transfer from an external memory;
• and
• a data buffer configured to buffer audio samples received from said external memory via said second interface circuitry,
• wherein said integrated circuit chip further comprises:
• a capture register coupled to receive from said data buffer audio samples requested by said audio codec, and configured to temporarily store the received audio samples, wherein said first interface circuitry is connected to receive temporarily stored data from said capture register in a sample order different from the order of the audio samples received from the external memory, wherein the second interface circuitry is configured to transfer a first audio sample to the capture register and to subsequently transfer a second audio sample to the capture register, and wherein the first interface circuitry is configured to receive the second audio sample from the capture register and to subsequently receive the first audio sample from the capture register.