JPH0490633A - Integrated circuit - Google Patents

Abstract

PURPOSE:To prevent reliability from deteriorating without necessitating a connector and a cable by transmitting digital information with an optical digital signal, with an optical interface incorporated. CONSTITUTION:In an input conversion part 11, the received optical digital signal is converted into an input electric signal to be supplied to an input part 12. This input electric signal is passed to a processing function part 13 in the input part 12, and the logic processing of the digital information indicated in the input electric signal is executed to be outputted as an output electric signal in the processing function part 13. This output electric signal is transmitted through an output part 14 to an output conversion part 15, and converted into the output optical signal to be transmitted to the other print substrate. The transmission circuit by the optical interface is thus constructed, the connector and the cable are unnecessitated and the deterioration of reliability caused by cable connection is not generated.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to integrated circuits, and more particularly to integrated circuits comprised of printed circuit boards.

(Prior Art) An integrated circuit having the configuration shown in FIG. 2 is generally known as an integrated circuit for processing digital signals. This integrated circuit includes an input section 21, a processing function section 22, and an output section 2.
3, the input section 21 receives digital information in the form of electrical signals, and the processing function section 22 logically processes this digital information and outputs it as processed digital information.

This processed digital information is then output as an electrical signal to the output section 2.
Output from 3.

(Problem to be Solved by the Invention) By the way, in the case of the above-mentioned integrated circuit, digital information is sent and received using electrical signals, so in order to send digital information to other printed circuit boards, each printed circuit board must be connected. As a result, cable connections not only reduce reliability, but also cause waveform distortion due to wiring, and are susceptible to crosstalk and noise. The problem is that it is easy.

An object of the present invention is to provide an integrated circuit whose reliability does not deteriorate.

Another object of the present invention is to provide an integrated circuit that does not cause waveform distortion and is less susceptible to crosstalk and noise.

(Means for Solving the Problems) According to the present invention, in an integrated circuit having a logic processing section that receives digital information as an electrical signal, performs logic processing on the digital information, and outputs the processed digital information as an electrical signal, An integrated circuit comprising: a first converting section that receives the digital information as an optical signal and converts it into the electrical signal; and a first converting section that converts the processed digital information into an optical signal and outputs it. is obtained.

Furthermore, in the present invention, in an integrated circuit having a logic processing section that receives digital information as an electrical signal, performs logical processing on the digital information, and outputs the processed digital information as an electrical signal, the integrated circuit receives the digital information as an optical signal, An integrated circuit characterized in that it has a conversion section that converts the electrical signal into the electrical signal is obtained.

Further, in the present invention, in an integrated circuit having a logic processing section that receives digital information as an electrical signal, performs logical processing on the digital information, and outputs the processed digital information as an electrical signal, the processed digital information is converted into an optical signal. There is obtained an integrated circuit characterized in that it has a converting section that outputs a converted signal.

Margin below (Example) The present invention will be explained below with reference to Examples.

Referring to FIG. 1, the integrated circuit according to the present invention has an input conversion section 11, a human power section 12, a processing function section 13, an output section 14, and an output conversion section 15.

Here, it is assumed that the digital information is sent as an optical digital signal. Upon receiving the optical digital signal, the input conversion section 11 converts the optical digital signal into an input electrical signal and supplies it to the input section 12 . The input section 12 passes this input electric signal to the processing function section 13, and the processing function section 13 executes logical processing on the digital information indicated by the input electric signal and outputs it as an output electric signal.

The logical processing here is, for example, a logical sum and a logical product, but a large-scale logical operation that combines a plurality of logical sums, logical products, etc. may also be performed.

The above output electrical signal is sent to the output converter 1 via the output section 14.
5, where it is converted into an output optical signal and transmitted to another printed circuit board.

In the embodiments described above, for example, a light emitting diode is used as the electro-optical conversion element, and a phototransistor or a silicon phototransistor is used as the photo-electrical conversion element.

As described above, since the integrated circuit according to the present invention has a built-in optical interface, it is possible to configure a transmission circuit using an optical interface without the need for connectors and cables.

Note that the integrated circuit located at the first stage does not need to include an input conversion section, and similarly, the integrated circuit located at the last stage does not need to include an output conversion section.

(Effects of the Invention) As explained above, in the present invention, since the optical interface is built into the integrated circuit and digital information is transmitted using optical digital signals, there is no need for connectors, cables, etc., and as a result, reliability is improved. without decreasing the
Furthermore, there is an effect that waveform distortion does not occur, and furthermore, it is less affected by crosstalk and noise.

Margin below

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of an integrated circuit according to the present invention, and FIG. 2 is a block diagram showing an example of a conventional integrated circuit. 11... Input conversion section, 12... Input section, 13...
Processing function section, 14... Output section, 15... Output conversion section. Figure 1 Figure 2

Claims (1)

[Claims] 1. An integrated circuit having a logic processing section that receives digital information as an electrical signal, performs logical processing on the digital information, and outputs the processed digital information as an electrical signal, wherein the digital information is converted into an optical signal. 1. An integrated circuit comprising: a first converting section that receives and converts the processed digital information into an electrical signal; and a first converting section that converts the processed digital information into an optical signal and outputs the optical signal. 2. An integrated circuit having a logic processing section that receives digital information as an electrical signal, performs logical processing on the digital information, and outputs the processed digital information as an electrical signal, which receives the digital information as an optical signal and converts it into the electrical signal. An integrated circuit comprising a converting section that performs conversion. 3. An integrated circuit having a logic processing section that receives digital information as an electrical signal, performs logical processing on the digital information, and outputs the processed digital information as an electrical signal, converting the processed digital information into an optical signal and outputting it. An integrated circuit characterized by having a conversion section.