Dual-backup self-repairing configuration memory based on shift register and self-repairing method thereof

A shift register and memory technology, applied in instruments, responding to the generation of errors, and redundancy in operations for data error detection, etc., can solve problems such as unsolved register failures, and achieve simplified configuration information storage and self-repair. Short time consumption and small number of effects

Active Publication Date: 2019-07-12
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among the three structures, the partial configuration data backup storage structure is the mainstream direction of research, but none of them solves the problem of how to repair the fault of the register that backs up the current working configuration data

Method used

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  • Dual-backup self-repairing configuration memory based on shift register and self-repairing method thereof
  • Dual-backup self-repairing configuration memory based on shift register and self-repairing method thereof
  • Dual-backup self-repairing configuration memory based on shift register and self-repairing method thereof

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Embodiment Construction

[0024] The inventive method is further described below in conjunction with the accompanying drawings.

[0025] figure 1 is a schematic diagram of configuring memory connections in a cell array structure. In the cell array circuit, the structure of each cell is the same, and the configuration memories of adjacent cells in the same row are connected to form a chain structure. The output of the left cell configuration memory is connected to the input of the right cell configuration memory. The end cell of each row is connected to the first cell of the adjacent row above. The entire cell array constitutes a complete translocation chain. Figure 1 Taking a row of three cells as an example to illustrate the connection relationship of the configuration memory.

[0026] The transfer of configuration data in the configuration memory takes the form of a serial transfer. When initializing the configuration, the configuration circuit controls the cell to read the configuration data f...

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Abstract

The invention discloses a dual-backup self-repairing configuration memory based on a shift register and a self-repairing method thereof. The circuit design of the configuration memory is applied to adistributed cell array structure digital circuit. The configuration memory circuit mainly comprises two shift register groups (SR0 and SR1), a cell register (CR) and corresponding control switches, and is controlled by a control module in a cell to send a signal. SR0 and SR1 respectively back up the configuration data of the left cell and the current cell, and the CR stores the configuration dataof the work of the current cell. The configuration memory transmits configuration data in a parallel shift mode, detects configuration data faults through parity check, and repairs the faults througha dynamic reconfiguration mode.

Description

technical field [0001] The invention relates to a dual-backup self-repair configuration memory applied to a digital circuit of a distributed cell array structure and a self-repair method thereof, belonging to the technical field of bionic self-repair and reconfigurable hardware design. Background technique [0002] With the continuous development of electronic technology, digital circuit chips are more and more widely used. Chips working in harsh environments have higher and higher requirements for reliability, especially for electronic systems working in the aerospace field. Due to the difficulty of manual maintenance and the high cost of system failures, the requirements for reliability are higher. Distributed cell array structure digital circuit, referred to as cell array circuit, is a reconfigurable digital circuit with distributed self-healing ability, a two-dimensional cell array circuit composed of multiple basic units. This basic unit is called a cell, and the modul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/14G06F11/10
CPCG06F11/1458G06F11/1008
Inventor 张砦邱尧刘燕袁霄亮
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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