On-chip network data transmission device and method with cascade protection function

A data transmission device and network-on-chip technology, applied in digital transmission systems, transmission systems, data exchange networks, etc., can solve problems such as affecting the transmission performance of the on-chip network, high router cache overhead, and increased transmission power consumption, and reduce transmission delays. and power overhead, reducing latency and power overhead, reducing the effect of frequent operations

Inactive Publication Date: 2013-10-09
CENT SOUTH UNIV
View PDF2 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The usual methods are mainly divided into two categories: one is to rely on end-to-end (end-to-end) retransmission solutions, but when the error rate increases, the delay overhead caused by retransmission will greatly increase, seriously affecting the network on chip. transmission performance
The other is to implement strict hop-by-hop protection for all data, but this method will lead to a large router cache overhead and a sharp increase in transmission power consumption

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • On-chip network data transmission device and method with cascade protection function
  • On-chip network data transmission device and method with cascade protection function
  • On-chip network data transmission device and method with cascade protection function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] figure 2 It is the structural diagram of the head protection unit. The header protection unit includes three sampling modules, a first-in-first-out cache and a majority voting module to protect the packet header:

[0038] The three-time sampling module includes three registers (R1, R2, R3), two multiplexers (MUX1, MUX2), and three-time sampling controllers, and the three registers R1, R2, R3 are all connected to the first multiplexer The selector MUX1 is connected, the first multiplexer MUX1 is connected with the second multiplexer MUX2, the first register R1 directly adopts the chip clock signal clk, and the second register R2 adopts the chip clock signal clk through the first small delay element ( figure 2 The clock signal after δ) in , the third register R3 adopts the clock signal after the chip clock signal clk passes through the first small delay element and the second small delay element. The small delay element is composed of two inverters connected in serie...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an on-chip network data transmission device and method with a cascade protection function and belongs to the technical field of multi-core chips. The device comprises a data coding unit, a head protection unit and a data decoding unit, wherein the data coding unit is used for achieving fault-tolerant coding of all data of a data package; the head protection unit is used for achieving skip-to-skip protection for a head chip; the data decoding unit is used for achieving decoding of the data package, requesting end-to-end retransmission when the number of errors exceeds the error correcting capability of adopted codes, and thus achieving end-to-end protection for the data package. Meanwhile, the invention discloses the on-chip network data transmission method with the cascade protection function. Reliable protection is conducted at the two stages of the data package and the chip, namely, the end-to-end protection is conducted on the data package and the skip-to-skip protection is conducted on the head chip, and the method can be achieved through the device. The device and method not only ensure on-chip network reliability, but also achieve data transmission which is low in power consumption and short in delay time.

Description

technical field [0001] The invention relates to the technical field of multi-core chips, in particular to a hierarchically protected on-chip network data transmission device and method. Background technique [0002] Network-on-Chip (NoC) is widely considered to be the most promising communication infrastructure in large-scale multi-core chips. [0003] Due to the limitations of the on-chip network router cache, the packets transmitted in the on-chip network are divided into smaller units - flits (flit) for transmission. These slices are further divided into headflits and dataflits. The header contains the routing information of the data packet, that is, the routing of the entire data packet is determined by the header, and the data follows the header and moves to the target node. [0004] However, various software and hardware errors (such as single-event flip (soft error, crosstalk, etc.)) may cause the transmission failure of the network on chip. For example, an error i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L1/18H04L12/70
Inventor 高建良王建新李欣
Owner CENT SOUTH UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap