Method and device for controlling test of multipath signals based on PAD

A multi-channel signal, one-channel technology, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problem of not being able to lead out multi-channel signal testing, so as to save the cost of casting and testing, facilitate testing, and improve testing efforts Effect

CN104155598AInactive Publication Date: 2014-11-19SUN YAT SEN UNIV +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2014-11-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method and device for controlling a test of multipath signals based on a PAD. The method comprises the following steps: arranging a multichotomous logic gate controllable circuit based on multipath signal sources, wherein the multichotomous logic gate controllable circuit is formed by combining a NOT gate, a NOR gate, a NAND gate and controllable switches; accessing multipath testing signals to the controllable switch of the multichotomous logic gate controllable circuit; controlling the multipath testing signals to be output to a pressure welding block PAD in an integrated circuit in a single direction based on a digital control source in a variable register; outputting the testing signals output in the single direction to a testing terminal by the PAD. According to the invention, the PAD layout area can be greatly reduced, the testing is more convenient, the chip investment cost and testing cost are reduced, and the testing effect is greatly improved.
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Description

technical field

[0001] The invention relates to the technical field of signal testing, in particular to a method and system for controlling multi-channel signal testing based on a PAD. Background technique

[0002] The development and replacement cycle of integrated circuit products is relatively short. According to Moore's Law, the number of circuits integrated on an integrated chip and the performance of a microprocessor double every other cycle; the performance of a computer that can be purchased with a comparable unit of currency quadruples every other cycle. Chip manufacturers should do their best to develop new technologies and update technical standards in the shortest possible time, so as to achieve rapid optimization of product cost performance, and target large-scale consumer groups, and even prevent consumers and users from being locked in by their own technical standards. The population is lost to competing firms.

[0003] In the entire R&D process of integrate...

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0028] figure 1 It shows a flow chart of a method for controlling multi-channel signal testing based on PAD in an embodiment of the present invention, including the following steps:

[0029] S101. Set up a multi-choice one logic gate controllable circuit based on multiple signal sources, and the multi-choice one logic gate controllable circuit is composed of NOT gates, NOR gates, NAND gates and controllable switches;

[0030] A variable register [n: 0] controls th...