Advanced Micro Devices, Inc.
Data communications with enhanced speed mode

Abstract:

An interconnect controller includes a data link layer controller coupled to a transaction layer, wherein the data link layer controller selectively receives data packets from and sends data packets to the transaction layer, and a physical layer controller coupled to the data link layer controller and to a communication link. The physical layer controller selectively operates at a first predetermined link speed. The physical layer controller has an enhanced speed mode, wherein in response to performing a link initialization, the interconnect controller queries a data processing platform to determine whether the enhanced speed mode is permitted, performs at least one setup operation to select an enhanced speed, wherein the enhanced speed is greater than the first predetermined link speed, and subsequently operates the communication link using the enhanced speed.