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Adaptive time coding/decoding device for inhibiting bus interference and coding/decoding method thereof

A time coding and self-adaptive technology, applied in the field of microelectronics, can solve the problem of low transmission efficiency, achieve the effect of improving data transmission efficiency, suppressing the increase of bus power consumption, and improving data transmission efficiency

Active Publication Date: 2010-09-29
陕西光电子先导院科技有限公司
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Problems solved by technology

The disadvantage of this method is that each data needs two clock cycles to be transmitted, and the transmission efficiency is low

Method used

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  • Adaptive time coding/decoding device for inhibiting bus interference and coding/decoding method thereof
  • Adaptive time coding/decoding device for inhibiting bus interference and coding/decoding method thereof
  • Adaptive time coding/decoding device for inhibiting bus interference and coding/decoding method thereof

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Embodiment Construction

[0045] refer to figure 1 , the adaptive time coding device for suppressing bus crosstalk of the present invention includes a state analysis module 11, a data transmission module 12, a first register R1 and a second register R2. Wherein: the state analysis module 11 judges whether the data in to be transmitted on the n-bit bus will cause crosstalk in the worst case, outputs the flag signal state, connects it to the input end of the data transmission module 12, and indicates the next cycle of the encoder Operation: the data transmission module 12 selects the transmission mode of the data in to be transmitted according to the flag signal state, and the output signal is next_out; the first register R1 registers the flag signal state, and the output is connected to the data selection terminal of the decoder data selection module 21 flag; the second register R2, which registers the output signal next_out of the data transmission module 12, and connects the output to the bus, and fee...

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Abstract

The invention discloses an adaptive time coding / decoding device for inhibiting bus interference and a coding / decoding method thereof, which mainly solve the problems of low data transmission efficiency and high bus power consumption of the conventional time bus coding method. The coding process comprises the following steps of: (1) judging whether to-be-transmitted data of a bus cause interference of worst condition, and generating a mark signal; (2) directly transmitting the data without the interference of the worst condition according to the state of the mark signal, and transmitting even data of the data with the interference of the worst condition; and (3) indicating an input state of a next period according to the mark signal. The device and the method thoroughly eliminate the interference of the worst condition, have the advantages of high data transmission efficiency and low bus power consumption, and can be used for designing super-large scale integrated circuits.

Description

technical field [0001] The invention belongs to the technical field of microelectronics, relates to a deep submicron process integrated circuit on-chip bus, in particular to a codec for suppressing bus crosstalk, which can be used in the design of ultra-large-scale integrated circuits. Background technique [0002] With the continuous reduction of the feature size of the integrated circuit process, the size of a single integrated device decreases, and the length of the local interconnect line decreases accordingly, but the length of the global interconnect line increases with the increase of the chip size. Moreover, due to the reduction of the distance between adjacent interconnect lines and the reduction of the width-to-height ratio of interconnect lines, the coupling capacitance C between interconnect lines I It is close to or even much larger than the ground capacitance C L . The ever-increasing coupling capacitance causes severe crosstalk when adjacent interconnect lin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
Inventor 刘毅杨银堂焦亚冬文博
Owner 陕西光电子先导院科技有限公司
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