Multi-speed burst mode serializer/de-serializer
AssigneeBroadcom Corporation
InventorWael William Diab
Life of this patent
Estimating the term…
Abstract
A multi-speed burst mode serializer/de-serializer (SerDes) is configurable and can operate in one of a plurality of operating modes. The plurality of operating modes correspond to the reception of signals from optical network units that operate at different nominal speeds. These various modes of operation can enable a single SerDes design to apply to a variety of speeds and network configurations (e.g., point-to-point or point-to-multipoint). In one example, the design can be initially configured for operation with a single ONT or a network of ONTs at a single speed, or can be dynamically configured during operation for use with a network of ONTs operating at different speeds.
Claims22
A multi-speed serializer/de-serializer transceiver, comprising:
- a clock recovery module for use in a point-to-multipoint network that is configurable in real time to operate in a plurality of modes in receiving communication from a first and a second optical network unit in said point-to-multipoint network;
- and
- configuration registers that store a first parameter for the configuration of said clock recovery module in a first mode that enables clock recovery from a signal received from said first optical network unit at a first speed, and a second parameter for the configuration of said clock recovery module in a second mode that enables clock recovery from a signal received from said second optical network unit at a second speed different from said first speed.
A multi-speed serializer/de-serializer, comprising:
- a clock recovery module that is configurable in real time to operate in a plurality of modes, wherein a first of said plurality of modes is capable of locking onto an incoming embedded clock within signals generated by a first optical network unit at a first speed, and a second of said plurality of modes is capable of locking onto an incoming embedded clock within signals generated by a second optical network unit at a second speed different from said first speed,
- wherein said clock recovery module is configured to operate in one of said plurality modes for each time slot based on a priori speed indication for each time slot.
A multi-speed serializer/de-serializer method, comprising:
- configuring a clock recovery module of a serializer/de-serializer in a first operating mode that locks onto an incoming embedded clock within a first signal generated by a first optical network unit operating at a first operating speed;
- and
- reconfiguring, in real time, said clock recovery module to change from said first operating mode to a second operating mode that locks onto an incoming embedded clock within a second signal generated by a second optical network unit operating at a second operating speed different from said first operating speed.
Dependencies are inferred from the claim text.