Multichip system capable of realizing reset and control method of multichip reset

A control method and multi-chip technology, applied in electrical components, pulse technology, electronic switches, etc., can solve problems such as increased hardware costs, excessive ripple, etc., and achieve the effect of reducing voltage overshoot

Inactive Publication Date: 2011-11-09
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0021] However, it is difficult to control the square difference of the current change by hardware configuration [(I OH ) 2 -(I OL ) 2 ], so the existing technology can only reduce the inductance value L, or increase the output capacitance value C O way, but the inductance value L is too small will cause the ripple to exceed the standard, the output capacitance value C O Excessive assembly leads to increased hardware costs

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  • Multichip system capable of realizing reset and control method of multichip reset
  • Multichip system capable of realizing reset and control method of multichip reset
  • Multichip system capable of realizing reset and control method of multichip reset

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Embodiment Construction

[0053] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0054] In this embodiment, all power-receiving chips that share the same output power supply do not trigger reset at the same time, but trigger reset in time division. That is, all powered chips that share the same output power supply do not use the same reset signal to trigger the reset synchronously, but trigger the reset by different reset signals output in time division, so that the total load current change of the output power supply is distributed among At different times, it is used to reduce the load current change rate of the output power supply.

[0055] Next, the multi-chip system in this embodiment will be described in detail first.

[0056] Figure 3a It is a schematic diagram of an exemplary structure of a multi-chip system according to ...

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Abstract

The invention discloses a multichip system capable of realizing reset and a control method of multichip reset. In the invention, all electrified chips sharing the same output power supply are triggered to reset by the different reset signals output by time division rather than the same reset signal, so that all the electrified chips for which the same output power source supplies power are not triggered to reset simultaneously, thus the rate of change of load current of the output power source is lower whenever the chips are reset, thereby decreasing the difference of two squares of instantaneous current changes when the electrified chips are reset, and reducing the voltage overshooting caused by the resets of the electrified chips.

Description

technical field [0001] The invention relates to chip reset technology, in particular to a multi-chip system capable of realizing reset and a control method for multi-chip reset. Background technique [0002] In existing multi-chip systems, high-power chips are usually selected to undertake increasingly complex data processing functions such as real-time calculation and data exchange. With the continuous development of chip processing technology, the operating voltage required by the chip is also continuously reduced. Therefore, for high-power chips in a multi-chip system, a low-voltage, high-current power supply is required for power supply. [0003] In addition, for the situation that the operating voltage requirements of the powered chips in the multi-chip system are different, it is necessary to provide more than one output power supply for different operating voltage requirements. In practical applications, such as figure 1 In the way shown, a bus AC / DC module (or DC / DC...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K17/22
Inventor 高玉山王玉田
Owner NEW H3C TECH CO LTD
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