Memory channel having deskew separate from redrive
View Patent ↗A memory agent may have a redrive circuit having a plurality of redrive paths, and a deskew circuit separate from the plurality of redrive paths. A deskew circuit may be integral with or separate from a redrive circuit having the plurality of redrive paths. A deskew circuit may be coupled between a redrive circuit and a memory device or interface.
1. A memory buffer comprising:
a redrive circuit having a plurality of redrive paths;
a deskew circuit coupled to and separate from the plurality of redrive paths to selectively deskew data received in the redrive circuit; and
a memory interface coupled to the deskew circuit.
2. A memory buffer according to claim 1 further comprising a second redrive circuit having a second plurality of redrive paths.
3. A memory buffer according to claim 2 further comprising a second deskew circuit coupled to and separate from the second plurality of redrive paths.
4. A memory buffer according to claim 1 wherein the deskew circuit is separate from the redrive circuit.
5. A system comprising:
a buffer comprising:
a redrive circuit having a plurality of redrive paths;
a deskew circuit coupled to and separate from the plurality of redrive paths to selectively deskew data received in the redrive circuit, and
a memory interface coupled to the deskew circuit; and
a memory controller coupled to the buffer.
6. A system according to claim 5 wherein the buffer is a first buffer, and further comprising a second buffer coupled to the first buffer.
7. A system according to claim 6 wherein the redrive circuit is a first redrive circuit, and the deskew circuit is a first deskew circuit, and the second buffer comprises:
a second redrive circuit having a second plurality of redrive paths; and
a second deskew circuit coupled to and separate from the second plurality of redrive paths.