JPS6232745A - Circuit processing system - Google Patents

Abstract

PURPOSE:To make a program in processor execute data processing without distinguishing an object to be processed by controlling the switching of circuits by hardware. CONSTITUTION:A data I/O switching part 20 to be hardware is connected between circuit corresponding parts 18 and a microprocessor 10. All data from the whole circuits 16 are integrated and inputted to the processor 10 through the switching part 20. Output data from the processor 10 are integrated and sent to the switching part 20, which distributes the data to the circuit corresponding parts 18. Processed data in the processor 10 are stored in a circuit- corresponding block of a data memory 14. Thus, the microprogram in the processor 10 can execute data processing without distinguishing a request generating circuit.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a line processing system that processes data on a plurality of lines.

[Prior Art] There is a line processing system in which one processor performs data processing on multiple lines.

For example, there is a line processing system in which a single microprocessor processes data on a plurality of local lines that operate at high speed. In this line processing system, after detecting a request from a line, a microprogram performs data processing corresponding to the line. The data memory of the system is divided into blocks corresponding to lines, and during data processing for a certain line, the blocks corresponding to that line are accessed by the microprocessor. Conventionally, this block selection was done by a microprogram. It is being said.

[Problems to be Solved] In such conventional line processing systems, the line switching control was performed on the processor (program) side, and therefore there were the following problems.

The response time from detecting a request from line 0 to starting data processing E111 corresponding to that line is long.

■Due to processing related to lines, if a large number of lines are accommodated, the program will become longer, the memory capacity for storing it will increase, and the processing speed will slow down.

■Because of this, the number of lines that can be accommodated is limited.

■The maximum number of lines that can be supported by a specific program is fixed, and there is little flexibility when it comes to adding more lines.

[Invention No. 1] The purpose of this invention is to solve such conventional problems, shorten programs, shorten response time, increase the number of lines,
Line processing/
The purpose is to provide a stem.

[Means for solving the problem] This invention uses hardware to control line switching so that the program side (processor side) can process data by treating multiple lines as one line without distinguishing between them. The system is designed to achieve the above objectives.

[Operation] Since line switching is controlled by hardware in this way, the ProSensor program can process data without distinguishing between lines to be processed (request-generating lines). If m=, a program can be created to process data on one fixed line. Therefore, the program can be made shorter than before, the response speed can be shortened, and an arbitrary number of lines can be supported with a common program.

[Embodiment] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic block diagram showing one embodiment of the present invention. In this figure, 10 is a microprocessor sensor, and 12 is a control memory that stores a microprogram for the microprocessor 10. A data memory 14 is accessed by the microprocessor 10, and is divided into a plurality of blocks corresponding to each line 16, separated by broken lines in the figure. Reference numeral 18 denotes a line handling section that performs data input/output and data error checking for each line 16.

Conventionally, the line correspondence section 18 and the microprocessor 10 have been directly coupled, but according to the present invention, a data input/output switching section 20, which is hardware, is interposed between them. The data input/output switching unit 20 unifies data from all lines 16 and inputs the data to the microprocessor IO. Further, the output data from the microprocessor 10 is unified into the data input/output switching unit 20.
The information is then sent to the line handling section 18 of the corresponding line. That is, this data input/output switching unit 20 switches the connection between the microprocessor IO and the line 16.

Furthermore, in the past, a block corresponding to a line in the data memory 14 was selected by a microprogram of the microprocessor 10, but according to the present invention, a memory that is hardware for selecting a block corresponding to a requested line is used. A switching section 22 is provided.

When a request for data processing is generated from a certain line 16, the memory switching unit 22 selects the corresponding block of the line in which the reasonable occurrence occurs. Further, the request is sent to the microprocessor 10 via the line correspondence section 18 and the data switching section 20, and the microprocessor 10 starts executing the microprogram. Manual data from the line is input to the microprocessor 10 via the data input/output switching unit 20, and the data or processed data is
The data is stored in the line corresponding block of the data memory 14 selected by the memory switching unit 22. Further, output data to the line is read from the selected block of the data memory 14, sent to the data switching section 20, and then outputted to the request generating line through the corresponding line corresponding section 18.

In this way, the microprogram of the microprocessor 10 processes data without distinguishing between request generating lines. In other words, a microprogram can be created to process data on one fixed line. therefore,
The microprogram can be shorter than before, the response speed can be shortened, and any number of lines can be supported with a common microprogram.

Although the 1-1 embodiment has been described below, the present invention is not limited thereto, and can be implemented with appropriate modifications.

[Effects of the invention - [-As explained, according to this invention] 1-i
Line switching is controlled by hardware, and the processor only has to treat multiple lines as one line and process data without distinguishing between them, so the processor program can be created to process data on a single fixed line. . Therefore, the program can be made shorter than before, the response speed can be shortened, and a common program can support any number of lines, making it possible to flexibly respond to increases and decreases in the number of lines.
It is possible to achieve effects such as

[Brief explanation of the drawing]

FIG. 1 is a schematic book diagram showing an embodiment of the present invention. 10°°° microprocessor, 12... control memory, 14... data memory, 16... line, 18...
・Line correspondence section, 20... Data person output switching section, 22.
...Memory switching section.

Claims (2)

[Claims] (1) A line processing system in which data processing for a plurality of lines is executed by one processor, characterized in that line switching control is performed by hardware. (2) The hardware includes a first circuit that responds to a processing request from an arbitrary line and selectively connects the line to the processor; a second circuit for selecting a block of the data memory corresponding to the data memory, and the block of the data memory selected by the second circuit is accessed by the processor during data processing for an arbitrary line by the processor. Claim 1 characterized by
Line processing system described in section.