US 12,634,106 B2 · Serdes lane control bonding systems and methods

Abstract

Various techniques are provided to configure serializer/deserializer (SerDes) lanes in one or more SerDes quads into configurable groups using a bonded link. The configuration registers may configure the SerDes lanes into the configurable groups. A lane bonding control module in each SerDes quad may link the signals, including control signals, that travel within each configurable group. To synchronize the control signals, the lane bonding control module may include one or more flops that introduce a fixed time delay for control signals that travel between SerDes quads, and pipe stage match modules that introduce a variable time delay to match the fixed time delay caused by the flops. Once synchronized, the control signals arrive at different SerDes lanes in the configurable group at the same clock cycle.

Claims20

Dependent claims

A circuit comprising:

a plurality of serializer/deserializer (SerDes) quads having a plurality of SerDes lanes, wherein the plurality of SerDes lanes are grouped into a configurable plurality of groups, and a subset of SerDes lanes from the plurality of SerDes lanes in a corresponding group are configured to operate as a bonded link;
and
a lane bonding control module having a plurality of flops and a plurality of pipe stage match modules and configured to synchronize signals transmitted in the subset of SerDes lanes, the plurality of flops configured to control timing of the signals using a fixed timing delay and the plurality of pipe stage match modules configured to control timing of the signals using a variable timing delay.

Dependencies are inferred from the claim text.

Serdes lane control bonding systems and methods

Life of this patent

Serdes lane control bonding systems and methods

Life of this patent

Abstract

Claims20