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US 11,240,072 B2Granted
Adaptation of a transmit equalizer using management registers
AssigneeIntel Corporation
InventorAdee Ofir Ran
Life of this patent
Estimating the term…
Abstract
Selection of equalization coefficients to configure a communications link between a receiver in a host system and a transmitter in an optical or electrical communication module is performed by a management entity with access to management registers in the receiver and transmitter. Continuous modification of the selected equalization coefficients is enabled on the communications link after the communications link is established to handle varying operating conditions such as temperature and humidity.
Claims18
An apparatus comprising:
- a receiver;
- a plurality of registers;
- and
- circuitry to, based on signals received at the receiver, request a setting change of a particular equalizer tap of a transmitter of the signals to be adjusted in part by a write to at least one management register, wherein:
- the signals comprise training data and
- the at least one management register is to indicate readiness of the receiver to receive data from the transmitter.
3 more elements
An apparatus comprising:
- a transmitter to transmit signals, wherein the signals comprise training data;
- a plurality of management registers;
- and circuitry, wherein:
- based on a management register of the plurality of management registers including a request to change a setting of a particular equalizer tap of the transmitter:
- the circuitry is to apply the request to change a setting of a particular equalizer tap and
- the circuitry is to provide in a second management register of the plurality of management registers, a response to the request to change a setting of a particular equalizer tap of the transmitter and
- based on a management register of a receiver indicating readiness of the receiver to receive data from the transmitter, the transmitter is to transmit data.
4 more elements
A method comprising:
- receiving signals at a receiver, and
- based on the signals received at the receiver, requesting a setting change of a particular equalizer tap of a transmitter of the signals to be adjusted in part by a write to at least one management register, wherein:
- the signals comprise training data and
- the at least one management register is to indicate readiness of the receiver to receive data from the transmitter.
1 more element
A method comprising:
- at a transmitter transmitting signals that comprises training data, based on at least one management register associated with the transmitter including a request to change a setting of a particular equalizer tap of the transmitter:
- applying the request to change a setting of a particular equalizer tap and
- providing a response in the at least one management register to the request to change a setting of a particular equalizer tap of the transmitter and
- based on a management register of a receiver indicating readiness of the receiver to receive data from the transmitter, transmitting data from the transmitter.
1 more element
Dependencies are inferred from the claim text.