4 results about "Media access controller" patented technology

The application discloses a chip, comprising: N core modules, N first path selectors, a first path control module, and N medium access controller (MAC) modules; N is a positive integer greater than 2; the output end of one first path selector is connected with one core module; the two input ends of the first first path selector are connected with the first MAC module and the second MAC module respectively; the two input ends of the Nth first path selector are connected with the Nth MAC module and the N-1th MAC module respectively; the three input ends of the mth first path selector are connected with the m-1th MAC module, the mth MAC module and the m+1th MAC module respectively; the first path control module is used for controlling the switch state of the first path selector when one core module is detected to be invalid, so that the first to N-1th MAC modules are respectively connected with one valid core module, and the core modules connected with different MAC modules are different.

This invention proposes a congestion state transmission method and related apparatus, relating to the field of communication technology. A memory unit stores the current flow control function state and the pending flow control function state corresponding to each receiving module. Initially, both the current flow control function state and the pending flow control function state are in a disabled state. The memory unit can acquire state detection trigger events for the target receiving module. If the target current flow control function state and the target pending flow control function state of the target receiving module are different, a first congestion state is sent to the media access controller according to the target pending flow control function state, and the target current flow control function state is updated according to the target pending flow control function state. The first congestion state characterizes the congestion state of the target receiving module, and the target pending flow control function state is set by the central processing unit according to the flow control function setting instructions sent by the user, thus avoiding atomicity issues.

A pluggable medium access controller (MAC) layer includes (1) a physical (PHY) layer interface configured to interface the pluggable MAC layer with a PHY layer and (2) a plurality of MAC modules. Each MAC module of the plurality of MAC modules is configured to implement respective functionality of the pluggable MAC layer. In some embodiments, the plurality of MAC modules are implemented in software, and the pluggable MAC layer is accordingly virtually configurable.

The invention discloses a network time delay self-calibration method, which is applied to a processing unit of a system on chip, the system on chip at least comprises the processing unit and a programmable logic unit, the processing unit comprises a media access controller, and the programmable logic unit is configured with a time delay module. An interface signal of the media access controller is transmitted to the programmable logic unit through an interconnection resource between the processing unit and the programmable logic unit, and the time delay module calibrates network time delay of the interface signal according to an optimal time delay point of the configured interface signal. The network time delay self-calibration method comprises the following steps: after the system on chip and external equipment establish network connection and are in the same network segment, executing a preset time delay calibration strategy to obtain an optimal time delay point of an interface signal, and configuring a time delay module according to the optimal time delay point. According to the method and the device, the technical problems of difficulty in time delay configuration and poor robustness caused by internal routing uncertainty of the FPGA are solved, the time delay calibration efficiency is remarkably improved, and the technical threshold of debugging requirements is reduced.