Bit-deskewing IO method and system

A receiver for receiving data comprising:

• a forward strobe clock recovery circuit configurable to align a forward strobe sampling clock;
• at least one data bit clock recovery circuit configurable to align a data bit sampling clock and to receive a signal from the forward strobe clock recovery circuit, the at least one data bit recovery circuit configuring the data bit sampling clock to track the forward strobe sampling clock during operation, wherein the data bit sampling clock is aligned by generating a data bit clock offset in a training phase during which the at least one data bit clock recovery circuit is active, and wherein the data bit clock offset includes an intermediate data bit clock offset combined with the signal from the forward strobe clock recovery circuit, wherein the signal comprises a forward strobe clock offset;
• and
• wherein during operation of the at least one data bit clock recovery circuit configurable to align a data bit sampling clock and to receive a signal from the forward strobe clock recovery circuit, the at least one data bit clock recovery circuit is inactive, the intermediate data bit clock offset is fixed, and the data bit clock offset varies with the forward strobe clock offset.

A method for receiving data comprising:

• responsive to receiving a forward strobe, a forward strobe clock recovery circuit aligning a forward strobe sampling clock;
• aligning a data bit sampling clock to track the forward strobe sampling clock during operation;
• wherein the forward strobe clock recovery circuit aligns the forward strobe sampling clock during a forward strobe training phase, including generating a forward strobe clock offset;
• and
• the at least one data bit clock recovery circuit aligns the data bit sampling clock during a data bit training phase in which the forward strobe clock recovery circuit in inactive, wherein the signal received from the forward strobe clock is the forward strobe offset, which is combined with an intermediate data clock offset to generate a data bit clock offset.