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US 10,762,031 B2Granted
System and method for setting equalization for communication between a processor and a device
AssigneeDell Products L.P.
InventorsSandor Farkas, Stuart Allen Berke, Bhyrav M. Mutnury
Life of this patent
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Abstract
An information handling system may include a central processing unit (CPU) and a device. The CPU may have an I/O system and be configured to host a BIOS. The device may be communicatively connected to the I/O system of the CPU by a connection. The BIOS may determine a communication protocol used by the device for communication and set an equalization of the I/O system for communication with the device based on the communication protocol used by the device.
Claims15
An information handling system comprising:
- a central processing unit (CPU) with a first I/O system and configured to host a BIOS;
- and
- a first device communicatively connected to the first I/O system by a first connection, wherein the BIOS is configured to utilize either a first equalization or a second equalization when the first device utilizes a first communication protocol or second communication protocol, respectively, wherein the second equalization includes a decision feedback equalization, and wherein the first equalization includes setting of an equalization selected from a group consisting of:
- feed forward equalization;
- analog equalization;
- variable gain amplification equalization;
- and boost amplification equalization, wherein the first communication protocol includes a serial advanced technology attachment communication protocol, and wherein the second communication protocol includes a peripheral component interconnect express protocol.
4 more elements
A server comprising:
- a processor with a first I/O system and configured to host a BIOS;
- a first server device communicatively connected to the first I/O system by a first connection, wherein the BIOS is configured to utilize a first equalization when the first server device utilizes a first communication protocol including a serial advanced technology attachment communication protocol, and wherein the first equalization includes setting an equalization to conserve power in the server, wherein the equalization of the first equalization is selected from a group consisting of:
- feed forward equalization;
- analog equalization;
- variable gain amplification equalization;
- and boost amplification equalization;
- and
- a second device, wherein the processor further comprises a second I/O system and the second device is connected to the second I/O system by a second connection including a connector, and wherein the BIOS determines a second communication protocol used by the second device for communication and utilizes a second equalization for communication with the second device based on the second communication protocol and one or more properties of the connector, wherein the second equalization includes a decision feedback equalization, and wherein the second communication protocol includes a peripheral component interconnect express protocol.
5 more elements
A method comprising:
- determining a communication protocol utilized by a first device to communicate to a processor comprising a first I/O system connected to the first device, the communication protocol including a first communication protocol or a second communication protocol that utilizes a first equalization or a second equalization, respectively;
- utilizing the first equalization or the second equalization in the first device based on the determined communication protocol, wherein second equalization includes a decision feedback equalization, and wherein the first equalization includes setting of an equalization selected from a group consisting of:
- feed forward equalization;
- analog equalization;
- variable gain amplification equalization;
- and boost amplification equalization, wherein the first communication protocol includes a serial advanced technology attachment communication protocol, and wherein the second communication protocol includes a peripheral component interconnect express protocol;
- and
- using the determined communication protocol by the processor in communicating to the first device.
5 more elements
Dependencies are inferred from the claim text.