JPH04369728A - Digital code processing system - Google Patents

Abstract

PURPOSE:To easily alter the specification of a function core and an operation order and to facilitate the realization of the whole function of a new system. CONSTITUTION:A selection circuit 30 selects the output signals of k1-kn sets from respective signal processing circuits 121-12N based on the command signal S1 of a control circuit 20 and outputs the output signal of an M-set. A selection circuit 40 selects the input signal of the M-set based on a command signal S2 and gives the input signal to the respective function cores 101-10N by one set by one. Selection circuits 111-11N select one set of the input signal from input terminals 11-1N and one set of the input signal from the selection circuit 40 and gives them to the signal processing circuit 12.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to a functional core selection device for a digital code processing system.

0002

[Prior Art] Conventionally, digital code processing systems
In order to realize the functions of the entire system, a group of functional cores required for the system has been created, and these functional core groups have been arbitrarily and directly connected to realize the desired functions of the entire system.

0003

[Problem to be Solved by the Invention] However, in such conventional digital code processing systems, functional core groups are directly connected, so for some reason the specifications of the functional core group may be changed (part of the functional core group may be deleted). (or additions), or when it becomes necessary to convert the operating order of each function, it is not easy to implement new system-wide functions.

The present invention solves the above-mentioned drawbacks, and provides a digital code processing system in which the specifications and operation order of functional cores can be easily changed and the overall functions of a new system can be easily realized. With the goal.

[0005]

[Means for Solving the Problems] The present invention has N positive integer input terminals into which one set of input signals is input, and one or more sets of output signals are generated by processing the input set of signals. In a digital code processing system that includes N functional cores including signal processing circuits and N output terminals that output a set of output signals of each of the signal processing circuits, A first selection circuit that selects one or more sets of output signals from each of the signal processing circuits and outputs M sets of positive integer output signals, and selects M sets of input signals based on an input second command signal. and a second selection circuit that provides one set to each of the functional cores, and each functional core selects one set of inputs from the corresponding input terminals among the N input terminals based on the input third command signal. a third selection circuit that selects the signal and a set of input signals from the second selection circuit and provides the signal to the signal processing circuit as the one set of signals; The present invention is characterized by comprising a control circuit that provides a command signal.

Further, in the present invention, each of the above output terminals except the Nth one can be connected to the input terminal of the next functional core.

Furthermore, in the present invention, the output of the first selection circuit and the input of the second selection circuit can be connected.

[0008]

[Operation] When each output terminal is connected to the input terminal of the next functional core, when changing the functional core, one set of M sets of output signals of the first selection circuit is given to the new functional core, The output signal of the new functional core is applied to the second selection circuit as one of the M sets of input signals. The control circuit provides first, second and third command signals to the first, second and third selection circuits, respectively. The first selection circuit selects one or more sets of output signals from each signal processing circuit based on the first command signal and outputs M sets of positive integer output signals. The second selection circuit selects M sets of input signals based on the second command signal and supplies one set to each functional core. Each functional core selects one set of input signals from the corresponding input terminal among the N pieces and one set of input signals from the second selection circuit based on a third command signal inputted by the third selection circuit. The signals are selected and provided to the signal processing circuit as a set of signals. When changing the operating order of the functional cores, the output of the first selection circuit and the input of the second selection circuit are connected and control is performed by giving a command signal in the same manner as above.

[0009] As described above, the specifications and operation order of the functional cores can be easily changed, and the overall functions of the new system can be easily realized.

0010

Embodiments Examples of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of a digital code processing system according to an embodiment of the present invention.

In FIG. 1, the digital code processing system has N positive integer input terminals 11 to 1N into which one set of input signals is input, and one or more sets of output signals by processing the input signal set. Signal processing circuits 121 to 1 that generate
It includes N functional cores 101 to 10N including 2N and N output terminals 21 to 2N that output one set of output signals of each signal processing circuit 121 to 12N.

Here, the feature of the present invention is that one or more sets of output signals of each signal processing circuit 121 to 12N are selected based on the command signal S1 as the first command signal to be input, and M sets of positive integers are generated. A selection circuit 30 is used as a first selection circuit to output an output signal of , and M sets of input signals are selected based on a designation signal S2 as a second command signal to be input, and one set is given to each functional core 101 to 10N. A selection circuit 40 is provided as a second selection circuit, and each functional core 101
~10N is the designated signal S as the third command signal to be input.
Based on this, the signal processing circuit 121 selects one set of input signals from the corresponding input terminals 11 to 1N out of N and one set of input signals from the selection circuit 40, and outputs them as one set of signals.
The selection circuit 11 is used as the third selection circuit to give ~12N.
1 to 11N, and a control circuit 20 that provides command signals S1 to S3.

Furthermore, each output terminal 21 to 2N is the input terminal 11 of the next functional core 101 to 10N except for the Nth one.
~1N.

The operation of the digital code processing system having such a configuration will be explained. FIG. 2 is a flowchart showing the procedure for changing the functional core of the digital code processing system of the present invention. FIG. 3 is a flowchart showing the procedure for changing the operating order of the functional cores of the digital code processing system of the present invention.

In FIG. 1, a selection circuit 111 in a functional core 101 selects a set of input signals from a normal input terminal 11 and outputs them to a signal processing circuit 121. The signal processing circuit 121 performs signal processing according to the specifications required for its function and sends k1 sets of output signals to the output terminal 21.
It is output to the input terminal 12 of the next functional core 102. In this embodiment, these ki sets of output signals are further connected to a selection circuit 30.

Functional cores 101 to 10N include selection circuits 111 to 11N and signal processing circuits 121 to 12N.
The system as a whole consists of the number of required function groups (
It is assumed here that only N terminals are provided, and the output terminal 2i is connected to the input terminal 1i+1.

The selection circuit 30 selects each functional core 101 to 1
Σki set sent from 0N (Σ is i=1 to N
The signal group (summation of
Output to.

The selection circuit 40 selects N sets of output signals based on the input signal from the input terminal 4 and the command signal S2 from the control circuit 20, and selects N sets of output signals from the input signals from the input terminal 4 to the N sets of functional cores 101 to 10N.
It is sent to another set of inputs of the selection circuits 111 to 11N within.

Here, a case will be described in which the functional specifications of the functional core 10i (1≦i≦N) are changed, with reference to FIG. 2, for example.

First, it is assumed that the change in the functional specifications is implemented in the signal processing circuit, and the signal processing circuit 11j that realizes the new function is called the signal processing circuit 11j, and the functional core 10j that includes this is assumed.

The input of the functional core 10j is connected to one set of M sets of output signals of the selection circuit 30, and the input of the functional core 10j is
is connected to one set of M sets of input signals of the selection circuit 40. Further, the control circuit 20 provides a command signal S1 to the selection circuit 30 to control the output signal of the functional core 10i-1 to be connected to the functional core 10j, and also controls the selection circuit 40 to connect the output signal of the functional core 10i-1 to the functional core 10j.
A command signal S2 is applied to the functional core 10j to control the output signal of the functional core 10j to be outputted to another set of inputs of the selection circuit 11i+1 in the functional core 10i+1. Furthermore, the control circuit 20 is a selection circuit 11i+ in the functional core 10i+1.
1 and sends the output signal to functional core 1.
The signal from the functional core 10j is selected instead of the signal from the functional core 12i, and this is sent to the signal processing circuit 12i+.
Send to 1.

As described above, the functional specifications of the functional core can be changed.

[0023] Furthermore, changing the operating order of the functional cores 10 is as follows:
As shown in FIG. 3, the M sets of outputs of the selection circuit 30 are connected to the M sets of inputs of the selection circuit 40, and the control circuit 20 gives command signals S1 to S3 to control the selection circuits 11, 30, and 40. This can be achieved by

[0024]

[Effects of the Invention] As explained above, the present invention allows the specifications and operation order of functional cores to be easily changed.
This has the excellent effect of making it easier to realize the overall functions of the new system.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a digital code processing system according to an embodiment of the present invention.

FIG. 2 is a flowchart showing the procedure for changing the functional core of the digital code processing system of the present invention.

[Figure 3]
Flowchart for changing the operating order of functional cores of the digital code processing system of the present invention

[Explanation of symbols]

11 ~ 1N, 4 input terminal 21 ~ 2N, 3 output terminal 101 ~ 10N functional core 111 ~ 11N, 30, 40 selection circuit 121
~12N Signal processing circuit S1, S2, S3 command signal

Claims (3)

[Claims] Claim 1: N positive integer input terminals that input one set of input signals, and a signal processing circuit that processes one set of input signals to generate one or more sets of output signals. In a digital code processing system comprising a functional core and N output terminals for outputting one set of output signals of each of the signal processing circuits, one or more of the above-mentioned signal processing circuits are output based on an input first command signal. Select the set of output signals of positive integer M
a first selection circuit that outputs a set of output signals, and a second selection circuit that selects M sets of input signals based on an input second command signal and supplies one set to each of the functional cores, Each of the above functional cores performs the above N based on the input third command signal.
A third selection that selects one set of input signals from the corresponding input terminals and one set of input signals from the second selection circuit and supplies them as the one set of signals to the signal processing circuit. 1. A digital code processing system comprising: a control circuit for providing the first, second and third command signals. 2. The digital code processing system according to claim 1, wherein each of the output terminals except the Nth functional core is connected to an input terminal of the next functional core. 3. The digital code processing system according to claim 1, wherein the output of said first selection circuit and the input of said second selection circuit are connected.