JPH05260171A - I/o bus data monitor system for exchange - Google Patents

Abstract

PURPOSE:To economize the capacity of a monitor buffer and a bus data storage part by designating a specific I/O instruction to monitor data. CONSTITUTION:Only I/O instructions gathered from an I/O bus 15 are selected and are set to an I/O instruction select memory 25 by an I/O instruction selecting means 26. When I/O data on the I/O bus 15 is gathered at the time of executing monitor, an I/O instruction discriminating means 24 selects only I/O instructions set to a discrimination memory 25 from gathered I/O data and stores them in a monitor buffer 23. I/O data stored in the monitor buffer 23 is sent to an external storage device 30 by a controller 21 of a bus interface circuit 20 and is received by a reception buffer 32, and bus data is stored in a storage part 33. Thus, the storage capacity of the monitor buffer and the bus data storage part is economized, and data is easily monitored in relation to only required I/O instructions.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an I / O (input / output) bus data monitor system for an exchange, and more particularly to an I / O bus data monitor system capable of specifying and monitoring only specific I / O data. ..

[0002]

2. Description of the Related Art In a conventional exchange I / O bus data monitor system, as shown in FIG. 2, I / O data on an I / O bus 15 between a main controller 10 and a peripheral device 11 of the exchange is collected. In this case, the monitor buffer 23 of the bus interface circuit 20a receives the I / O data of the I / O bus 15. At this time, the control device 21 of the bus interface circuit 20a sequentially sends the I / O data received by the monitor buffer 23 to the transmission / reception buffer 32 of the external storage device 30. Further, the external storage control device 31 has a transmission / reception buffer 32.
The bus data storage unit 33 stores the I / O data received in.

[0003]

In the above-mentioned conventional I / O bus data monitor system for the exchange, the I / O data is monitored at the time of monitoring.
Since all the I / O data on the bus 15 is received by the monitor buffer 23 and accumulated in the bus data storage unit 33 of the external storage device 30, a buffer capacity for receiving a large amount of I / O data is required and However, there is a problem that the control circuit 21 is required to have a processing capability for sequentially sending a large amount of I / O data to the external storage device 30. further,
There is also a problem that the external storage device 30 requires a large capacity bus data storage unit 33 for accumulating a large amount of received data. In addition, it is not possible to monitor a specific I / O command, and if it is desired to monitor it, it is necessary to manually select a specific I / O command from all collected I / O data. there were.

The present invention has been proposed in order to solve the problems of the above-mentioned conventional techniques, and a specific I
An object of the present invention is to provide an I / O bus data monitor system that can save the capacity of a monitor buffer and a bus data storage unit by designating an I / O instruction to be monitored.

[0005]

To achieve this object, an I / O bus data monitoring system for an exchange according to the present invention uses an I / O on an I / O bus between a main control unit and a peripheral control unit of the exchange. A bus interface circuit for transmitting / receiving data to / from an external storage device, a monitor buffer for accumulating I / O data collected from the I / O bus, and an I / O instruction selecting means for designating an I / O instruction to be collected, Only the I / O instruction specified in the I / O instruction selection memory is monitored from the I / O instruction selection memory that stores the selected I / O instruction and the I / O data collected from the I / O bus. The I / O command determining means for accumulating in the buffer, the monitor buffer, the I / O command selecting means, the I / O command selecting memory, and the control device for controlling the I / O command determining means.

In the I / O bus data monitor system according to the present invention, the bus interface circuit stores a monitor buffer for accumulating I / O data collected from the I / O bus,
A simulated buffer that stores I / O data to be sent to the I / O bus, and an I / O that specifies the I / O commands to be collected
O instruction selecting means and I / O for storing the selected I / O instruction
From the I / O data collected from the O instruction selection memory and the I / O bus, only the I / O instruction specified in the I / O instruction selection memory is stored in the monitor buffer.
The external memory device comprises an instruction determining means and a monitor buffer, a simulation buffer, an I / O instruction selecting means, an I / O instruction selecting memory, and a control device for controlling the I / O instruction determining means. The transmission / reception buffer is connected to the circuit to transmit / receive data, and the bus data storage unit stores the received data.

[0007]

According to the above-mentioned structure, by setting the I / O command to be monitored in the I / O command selecting means, the I / O command is selected.
The instruction is stored in the I / O instruction selection memory. When the monitor is executed, the I / O data collected from the I / O bus is used for I / O based on the contents stored in the I / O instruction selection memory.
The O instruction determining means selects only the designated I / O instruction and stores it in the monitor buffer. This allows only specific I / O instructions to be specified and monitored.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A concrete embodiment of an I / O bus data monitor system for an exchange according to the present invention will be described below in detail with reference to the drawings. An embodiment of this I / O bus data monitor system is shown in the block diagram of FIG. In this figure, the main controller 10 and the peripheral controller 11 of the exchange are connected by an I / O bus 15, and I / O data from the I / O bus 15 is externally stored by intermediation of a bus interface circuit 20. It is sent to and received from the device 30.

The bus interface circuit 20 has an I / O
A monitor buffer 23 for accumulating I / O data collected from the O bus 15 and an I / O for sending to the I / O bus 15.
It has a simulation buffer 22 for accumulating data. Further, the bus interface circuit 20 uses the I
An I / O instruction selection means 26 for designating an I / O instruction, an I / O instruction selection memory 25 for storing the selected I / O instruction,
It has an I / O command determination means 24 that selects only the I / O command specified by the I / O command selection memory 25 from the collected I / O data and accumulates it in the monitor buffer 23. The monitor buffer 23, the simulation buffer 22, the I / O instruction selection means 26, the I / O instruction selection memory 25, and the I / O instruction determination means 24 are controlled by the control device 21.

The bus interface circuit 20 includes an external storage device 30 controlled by an external storage control circuit 31.
It is connected to the. The external storage device 30 has a transmission / reception buffer 32 and a bus data storage unit 33.

Next, the operation of the I / O bus data monitor system thus constructed will be described. First, the I / O instruction selecting means 26 collects I / O from the I / O bus 15.
Only the O instruction is selected and set in the I / O instruction selection memory 25. Next, when collecting the I / O data on the I / O bus 15 when the monitor is executed, the I / O command determining means 24
Is the I / O set in the I / O command judgment memory 25.
Only the instruction is selected from the collected I / O data and accumulated in the monitor buffer 23.

Controller 2 for bus interface circuit 20
1 sends the I / O data accumulated in the monitor buffer 23 to the external storage device 30. The external storage device 30 receives this I / O data in the reception buffer 32 and stores it in the bus data storage unit 33 under the control of the external storage control device 31.

The present invention is not limited to the above-mentioned embodiments, and various modifications can be made within the scope of the invention.

[0014]

As described above, according to the present invention, when the I / O data on the I / O bus is accumulated in the monitor buffer at the time of monitoring, the I / O instruction selecting means selects the I / O data in advance. Since only the I / O command set in the command selection memory can be judged by the I / O command judgment means and stored in the monitor buffer, the capacity of the monitor buffer can be saved. Further, since only the selected I / O data is sent to the external storage device, it is possible to reduce the processing capacity of the control device that controls when sending the I / O data to the external storage device. Further, the external storage device has an advantage that the storage capacity of the bus data storage unit for accumulating the received I / O data can be saved. Further, there is an effect that it is possible to easily monitor only necessary I / O instructions.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of an I / O bus data monitor system of an exchange according to the present invention.

FIG. 2 is a block diagram showing a conventional I / O bus data monitor system.

[Explanation of symbols]

 10 Main Controller of Switch 11 Peripheral Controller 15 I / O Bus 20 Bus Interface Circuit 21 Controller 22 Simulation Buffer 23 Monitor Buffer 24 I / O Command Judgment Means 25 I / O Command Selection Memory 26 I / O Command Selection Means 30 external storage device 31 external storage control device 32 transmission / reception buffer 33 bus data storage unit

Claims (2)

[Claims] 1. A bus interface circuit for transmitting and receiving I / O data on an I / O bus between a main control unit and a peripheral control unit of an exchange to an external storage device, an I / O collected from the I / O bus. A monitor buffer for accumulating data, an I / O instruction selecting means for specifying an I / O instruction to be collected, an I / O instruction selecting memory for storing the selected I / O instruction, and an I / O
From the I / O data collected from the bus, the I / O command determining means for accumulating only the I / O commands specified in the I / O command selection memory in the monitor buffer, and these monitor buffer and I / O commands An I / O bus data monitor system for an exchange, comprising: a selection means, an I / O instruction selection memory, and a control device for controlling the I / O instruction determination means. 2. A bus interface circuit for transmitting and receiving I / O data on an I / O bus between a main control unit and a peripheral control unit of an exchange to an external storage device, the I / O data collected from the I / O bus. Monitor buffer for accumulating data, a simulation buffer for accumulating I / O data to be sent to the I / O bus, I / O command selecting means for designating I / O commands to be collected, and selected I / O command From the I / O instruction selection memory that stores the I / O data and the I / O data collected from the I / O bus,
I / O instruction determining means for accumulating only the I / O instructions specified in the I / O instruction selection memory in the monitor buffer, the monitor buffer, the simulation buffer,
I / O instruction selection means, I / O instruction selection memory and I / O
The external storage device includes a transmission / reception buffer connected to the bus interface circuit for transmitting and receiving data, and a bus data storage unit for storing the received data. I / O bus data monitoring system for exchanges.