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A data path device and its control method

A data path and component technology, which is applied in data processing power supply, electrical digital data processing, digital data processing components, etc., can solve the problems of operand isolation power consumption and area cost, and isolation logic increases power consumption and area, etc. Achieve the effect of reducing power consumption and reducing signal inversion

Active Publication Date: 2017-07-07
INST OF ACOUSTICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Operand isolation is costly in terms of power and area due to the increased power and area of ​​the isolation logic

Method used

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  • A data path device and its control method
  • A data path device and its control method
  • A data path device and its control method

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Embodiment Construction

[0032] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0033] Fig. 5(a) is a schematic structural diagram of a data path device provided by an embodiment of the present invention. As shown in Figure 5 (a), the device includes replication logic 10, replication logic 20, replication logic 30, signal generation module 60, signal generation module 61, signal generation module 70, signal generation module 80, a first register group (REG1 ), the second register group (REG2), the third register (REG3), the fourth register (REG4), the first multiplexer (MUX1), the second multiplexer (MUX2), the adder (ADDER), control logic 40 and control logic 50 .

[0034] The first input terminal of the signal generation module 60 is connected to the output terminal of the replication logic 10, its second input terminal is connected to the original enable signal MuxSell_Enb of the third registe...

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Abstract

The invention discloses a data routing device and a control method thereof. The device comprises at least one replication logic and at least one signal generation module; the first input end of the signal generation module is connected with the output end of the replication logic, and while an original enable signal of a functional part is connected to the second input end of the signal generation module; the replication logic is used for calculating ODC (observability don't cares) value of an output signal of the functional part; if the ODC value is at the first level, the signal generating module generates a new enable signal of the functional part according to the ODC value and the original enable signal of the functional part; the new enable signal of the functional part is used for inhibiting the update of the output signal of the functional part. Compared with the traditional data routing structure, the data routing device has the advantages that the control of an input signal register is added, so that unnecessary inversion is reduced, and as a result, the power consumption can be reduced.

Description

technical field [0001] The invention relates to the field of integrated circuit design, in particular to a data path device and a control method thereof. Background technique [0002] With the continuous increase in the complexity of integrated circuit design, the entire system can be implemented on a single chip, but this performance increase comes at the cost of a sharp increase in power consumption, especially for a wide range of handheld devices. Since a substantial increase in battery capacity is not easy to achieve in the short term, this requires not only performance but also power consumption to be considered in the IC design process. [0003] The data path (Data Path) is a key component of the processor core to transmit signals. During the running of the program, the signal flips very frequently, which makes the data path one of the main sources of processor power consumption. [0004] figure 1 is the general structure of the data path. Such as figure 1 As shown...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F1/32
CPCG06F1/3234
Inventor 王雷欧应欢王东辉
Owner INST OF ACOUSTICS CHINESE ACAD OF SCI