JPH0477936A - Data monitor devices for plural registers - Google Patents

Abstract

PURPOSE:To monitor data on plural registers without increasing the number of LED for data monitor by providing the registers for data monitor, a display means driven by means of the outputs of the registers and a selection means selecting a data storage signal for data storage registers and inputting them to the registers for data monitor. CONSTITUTION:Same data as data in the registers 3-1 to 3-n for monitor are stored in the register for data monitor 4 by selecting the data storage signals 2-1 to 2-n storing data in the data storage registers 3-1 to 3-n to be monitored and inputting them in the register for data monitor 4, and the display means 5 is driven to monitor data. Thus, data on plural registers can be monitored without increasing the number of led for monitor LED 5 even if the number of the data storage registers is increased only by providing the selection means 7, the register 4, the display means 5 driven by the output of the register 4 and the selection means 7 selecting the storage signals 2-1 to 2-n.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a data monitoring device that monitors data that can be stored in a plurality of registers mounted on a board, particularly in registers whose data is periodically updated.

[Prior art]

FIG. 2 is a block diagram showing the configuration of a conventional monitor system for monitoring data stored in a plurality of registers mounted on a board. In the same figure, 21-1.21-2.・
..., 21-n are registers in which data is stored, and 22-1.22-2.

..., 22-n are LEDs for data monitoring.

As shown in the figure, the conventional multi-register data monitoring device includes registers 21-1, 21-2, . ..., 21-
LED22-1, 22-2 for data monitoring for each of n
, . . . , 22-n are connected, and each register 21-1, 21-2 . ..., when data is stored in 21-n, the corresponding LED 22-1.22-2,
−． 22-n is turned on.

[Problem to be solved by the invention]

However, in the conventional monitoring method described above, as the number of registers mounted on the board increases, the number of LEDs required to monitor the data increases, making the board pattern design complicated, and the number of LEDs, numerical indicators, etc. There was a problem in that the power consumption increased because of the large number of drives.

The present invention has been made in view of the above-mentioned points, and eliminates the above-mentioned problems. Regardless of the number of registers, the number of LEDs, numerical displays, etc. and power consumption do not increase, and the pattern design of the board can be realized. An object of the present invention is to provide a data monitoring device for multiple registers that does not become complicated.

[Means to solve the problem]

In order to solve the above-mentioned problems, the present invention has configured a data monitoring device for multiple registers as follows.

In a multi-register data monitor device that includes a plurality of data storage registers connected to a data bus and monitors data that can be stored in each of the data storage registers, a data monitor connected to the data bus separately from the data storage registers. Select the data storage signal for the data storage register to be monitored among the data storage signals for storing data in the display means driven by the output of the data storage register, the display means driven by the output of the data monitoring register, and the data storage register, and display the data. The present invention is characterized in that it is provided with selection means for inputting to a monitor register.

[Effect]

By configuring the data monitoring device of multiple registers as described above, the data storage signal for storing data in the data storage register to be monitored is selected and inputted to the data monitoring register, so that the data is monitored in the data monitoring register. The same data as the data in the data storage register is stored, and the display is driven to monitor the data.
By simply providing a selection means, a data monitor register, a display means driven by the output of the data monitor register, and a selection means for selecting a data storage signal, even if the number of data storage registers increases, it can be used as before. Data in multiple registers can be monitored without increasing the number of monitoring LEDs.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 is a block diagram showing the configuration of a data monitor circuit for multiple registers according to the present invention. As shown, data bus 1 includes data storage registers 3-1, 3-2. ...
, 3-n and the data monitor register 4. Each data storage register 3-1, 3-2,...
, 3-n, a data storage signal 2-1 for storing data in
, 2-2, . . . , 2-n are respective data storage registers 3-1, 3-2.

..., 3-n and the selection circuit 7. Also,
A switch 6 is connected to the selection circuit 7. In the data monitor circuit with the above configuration, first, the switch 6
Data storage register 3-1゜3-2. ..., 3-n
When the number of the data storage register to be monitored is set, the selection circuit 7 selects the data storage signal 2-1.2 to store data in the set data storage register.
-2°..., 2-n, selection circuit 7
The data is input to the data monitor register 4 from As a result, data from the data bus 1 is stored in the data monitor register 4. The data monitor LED 5 is driven and illuminated by the output of the data monitor register 4.

By configuring the data monitor circuit as described above,
Data storage register mounted on the board 3-1.3-2.
..., even if the number of 3-n increases, by providing one data monitor register 4, the data monitor LE
D. Each data storage register 3-1.3-2. without increasing the number of numerical displays. ..., it becomes possible to monitor the data stored in 3-n. Furthermore, even if the number of data storage registers 3-1, 3-2, . Pattern design is also not complicated.

〔Effect of the invention〕

As explained above, according to the present invention, the following excellent effects can be obtained.

(1) By providing a data monitor register, even if the number of data storage registers increases, the data stored in each data storage register can be easily monitored without increasing the number of data monitor LEDs and numerical displays as in the past. Monitoring becomes possible.

2) Furthermore, even if the number of data storage registers increases, the number of display means such as data monitor LEDs and numerical display devices is not increased, so power consumption does not increase and pattern design does not become complicated.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of a data monitoring device with multiple registers according to the present invention, and FIG. 2 is a block diagram showing the configuration of a conventional data monitoring device with multiple registers. In the figure, 1...data bus, 2-1, 2-2,...
..., 2-n... data storage signal, 3-1.3-
2,...,3-n...data storage register, 4
... Data monitor register, 5... Data monitor LED, 6... Switch, 7... Selection circuit. Data of Wood Ax Throat 7, Scum 1-+, S O to Ko, 370//
7th Figure 1

Claims (1)

[Scope of Claims] A data monitoring device for multiple registers, which includes a plurality of data storage registers connected to a data bus and monitors data stored in each of the data storage registers, the device comprising: a data monitor register connected to the data bus; a display device driven by the output of the data monitor register; and a display unit that displays data to be monitored in a data storage signal for storing data in each of the data storage registers. 1. A data monitoring device having a plurality of registers, comprising a selection means for selecting a data storage signal to be stored in a storage register and inputting the selected signal to the data monitoring register.