JPH0359729A - Communication equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a communication device in which one operating unit communicates with another operating unit by buttoning a plurality of operating units that operate independently.

BACKGROUND OF THE INVENTION Recently, as one implementation of parallel processing, a plurality of processing blocks are considered to be at the same layer level, and a management block (hereinafter referred to as a host) that supervises the entire system is placed above it. For example, IEEICASSP 1986.TOKY
ARCHITECTURE OF A Real-time Video Signal Processor (ARCHITECTURE OF A)
REAL-TIME VIDEO5IGNAL
PROCFJSSOR)J is known. When adopting such a configuration, the processing capacity as a whole will increase if the processing blocks under the host can proceed as much as possible independently from the host and other processing blocks.

Problems to be Solved by the Invention However, in reality, it is rare that completely independent processing can proceed, and it becomes necessary to synchronize or exchange information in some form.

For example, as shown in Figure 4, the host reads processing block information (b in Figure 4) and resets synchronization resources (
There was a problem in that it was necessary to perform two tasks (C) in Figure 4.0 In addition, in this type of communication, the processing block is in a standby state in the case where the host reads the information of the processing block1. Processing is stopped. Therefore-
This makes it possible to release the processing block from the standby state as quickly as possible.

Furthermore, as the number of communications of this kind increases, one of the keys to speeding up the entire process is how much time the standby state can be shortened.

In view of the above-mentioned problems and demands, the present invention is intended to quickly release the processing section from the standby state and restart it.

Means for Solving the Problems The present invention provides a synchronization state storage means, an execution control means for setting a communication request in the synchronization state storage means and monitoring its contents, and a process whose execution is controlled by the execution control means. and a system management means that monitors the synchronization state recording means, reads internal data of the processing execution means, and resets the communication request of the synchronization state storage means using the read signal. According to the configuration of the communication device of the present invention, at least two instructions are required when normal read and reset are performed separately, but by using the present invention, only one instruction is required. Therefore, as far as this type of communication is concerned, it can be processed in half the time of the current system.

Embodiment FIG. 1 is a block diagram of a communication device according to an embodiment of the present invention. In Figure 1, 101 is Sera) IJp
102 is the synchronization state storage unit 1 of the
103 is a processing execution unit whose execution is controlled by the execution control unit 102, and 104 monitors the synchronization state storage unit 101, resets the communication request, and executes the process. This is a host unit that reads internal data of the unit 103.

The operation of the above configuration will be explained below.

To simplify the explanation, a section consisting of the synchronization state storage section 101, the execution control section 102, and the processing execution section 103 will be referred to as a processing section for the host section 104.

First, the operation of the processing section will be explained based on the flowchart of FIG. When the processing unit needs to inform the host unit 104 of its internal state (a in FIG. 2), the execution control unit 102 stops the execution of the processing execution unit 103 (
Figure 2 b). Next, the execution control unit 102 stores the synchronization state storage unit 101 (C in FIG. 2). Next, the synchronization state storage unit 101 of the execution control unit 102 is reset! (d in Figure 2). When the execution control unit 102 recognizes that the synchronization state storage unit 101 has been reset, it resumes execution of the processing execution unit 103 (e in FIG. 2).

Next, the operation of the host section 104 will be explained based on the flowchart of FIG. The host unit 104 monitors the setting of the synchronization state storage unit 101 (a in FIG. 3).
). When the host section 104 recognizes that the synchronization state storage section 101 has been set, it goes to read the internal state of the processing execution section 103 (FIG. 3b). As is clear from the connections among the blocks shown in FIG. 1, the read signal line from the host section 104 to the processing execution section 103 is connected to the reset terminal of the synchronization state storage section 101. Therefore, at the same time as the read operation of the host unit 104, the reset-g
It will be done. In this embodiment, for the sake of simplicity, it is assumed that the data retention time and propagation delay caused by a read button can be ignored.

As described above, according to this embodiment, by connecting the read signal of the host section 104 to the reset terminal of the synchronization state storage section 101, it is possible to reset at the same time as the read, and the processing section can be immediately restarted. can. Regarding the logic of the state storage unit 101, in this embodiment, the communication request state from the processing unit is set, and the processing unit execution restart permission state from the host is reset, but it will not work perfectly even if the reverse is the case. It's obvious.

As described in detail, by using the communication device of the present invention, a processing section in a standby state can be restarted quickly. If normal read and write operations are performed separately, at least two instructions are required, but if the present invention is used, only one instruction is required. Therefore, as far as this type of communication is concerned, it can be processed in half the time of the current system.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a communication device that can be pressed according to an embodiment of the present invention, FIG. 2 is an operation flowchart of a processing section connected to the same device, and FIG. FIG. 4 is an operational flowchart of a host section in a conventional communication device. 101...Synchronization state storage unit, 102...Execution control unit, 103...Process execution unit, 104...Host unit.

Claims (1)

[Claims] a synchronization state storage means, an execution control means for setting a communication request in the synchronization state storage means and monitoring its contents, a process execution means whose execution is controlled by the execution control means, and the synchronization state storage means and system management means for monitoring the internal data of the processing execution means and resetting the communication request of the synchronization state storage means based on a signal for performing the reading.