JPH04114533A - Processor - Google Patents

Abstract

PURPOSE:To secure the affinity of connection with a network by operating and connecting a system bus connecting a CPU part, a network interface part, an I/O interface part and a memory interface part by means of a serial transmission system. CONSTITUTION:An information processing system is composed of a network system where plural terminals 1-4 respectively execute plural processing functions so as to execute a high-grade processing at high speed and necessary data is transferred between the terminals 1-4 or between the terminals 1-4 and a host HST through the network LAN from a system where terminals 1-4 being the data processors individually execute a processing. Namely, most terminals premise the connection of the network. Thus, the system bus in the data processor is set to be that taking the same token ring LAN system as the network LAN, for example, and therefore connection with the network LAN outside the terminals is facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a CPU and an i/
This relates to the configuration of the internal system bus that connects the

[Prior Art] Conventionally, a CPU and an i/
For example, the system bus connecting
One company's Multibus, and Otorola's VME
There are standard buses that are open to users, such as Bus, and proprietary buses that have standards for each data processing device, but all of these buses have a system bus configuration that is parallel and closed within the device.

In addition, related to this type of device.

For example, Japanese Patent Application Laid-Open No. 63-97037, ``Loop Network System,'' which is based on a Japanese patent application.

[Problems to be Solved by the Invention] The above-mentioned conventional technology does not take into account the joining of a data processing device to a LAN, and the internal system bus and L
There was a problem when building the network system because it was not consistent with the AN.

Furthermore, the above-mentioned parallel bus in which a plurality of signal lines are bundled has a problem in increasing the speed of the bus due to differences in signal transmission skew between the signal lines.

Furthermore, since electrical signals are used, electromagnetic interference occurs.

The present invention aims to solve the problems of the prior art described above.

[Means for Solving the Problems] In order to achieve the above object, the present invention connects a system bus that connects a CPU, an A LAN with good compatibility, for example, the same LAN as the subscriber network.

In addition, a serial transmission system bus configuration is adopted to achieve higher bus speeds.

Furthermore, to prevent electromagnetic interference, an optical transmission method will be used.

That is, it has means for incorporating the LAN concept into the system bus within the data processing device.

[Operation] The system bus in the data processing device has a LAN connection type bus configuration similar to or the same as the network that constructs the system. That is, by replacing the conventionally used parallel system bus that is closed within the device with a serial transmission path similar to a network, it is possible to create a data processing device with good connectivity and compatibility when joining a network.

Also, by using a serial/optical transmission method.

It is possible to achieve faster bus speeds and prevent electromagnetic interference.

[Example] An example of the present invention will be described below with reference to FIGS. 1, 2, and 3.

In FIG. 2, 1 to 4 are terminals, H and ST are host computers, and LAN is a network that uses, for example, a token ring LAN system, which is a known technology. As shown in Figure 2, the information processing system includes a terminal 1 which is a data processing device.
From a system in which ~4 performs processing alone to a system in which multiple terminals 1 to 4 process
4 performs advanced processing at high speed by sharing multiple processing functions.

Transfer the necessary data when needed between terminals 1 to 4 or between terminals 1 and 1.
~4-Transfer between host H5T via network LAN. Take network system configuration. That is, most of the terminals are assumed to be connected to the network. Therefore, as shown in Fig. 1, by making the system bus within the data processing device a bus that uses the token ring LAN method similar to the network LAN shown in Fig. 2, connection to the network LAN outside the terminal is possible. make it easier.

An embodiment of the present invention will be explained in detail below using FIGS. 1 and 3.

The detailed block configuration of terminal 1 is shown in FIG. 1 as a representative of terminals 1 to 4 shown in FIG. 2. In FIG. 1, 1 is a terminal (data processing device I), and LAN is an external The network and BUS are, for example, external network L
Transmission method similar to AN (e.g. token ring LAN)
20 is a serial bus (transmission line) that connects a microprocessor and a CPU unit with a cache or work memory and program storage memory that are essential for high-speed data processing, and 20 is an external network LAN and system bus BUS. a network interface unit for exchanging data with 3;
0.40 is the input/output device (hard disk family [
An I/O interface unit 50 is used to connect an HD or floppy disk device (FD), and an additional memory interface unit 50 is used to connect an additional memory MEM. For example, if the system bus BUS is operated using the token ring method, each unit /o to 50 described above is connected to the system bus BU (not shown).
It has a transmission/reception control unit that supports S operation (protocol) and transmission/reception.

System bus BUS for serial transmission in the present invention
The role and division of the bus is to transfer data between the units /o to 50 in the same way as a general parallel bus. Yui-
The difference from a general parallel bus is that data transfer follows a token ring protocol, for example.

On the other hand, serial data flowing on a normal network LAN is randomly sent in packet units of a certain amount of data Ji. Therefore, in conventional terminals, serial-to-parallel conversion is required to edit packets and match them to the parallel system bus, resulting in large delays. In the present invention, as shown in FIG. 1, since each unit /o to 50 has a transmission/reception control section, the network interface unit 20
The serial data received from the AN is passed in serial form to the system bus BUS.

On the other hand, if the protocol of the system bus BUS is made the same as, for example, the protocol of an external network LAN, it is possible to connect directly to the network LAN without going through the network interface unit 20, as shown in FIG.

If the above-described direct connection M configuration is applied to the network configuration shown in FIG. 2, each of the terminals 1 to 4 can be made into one data processing device. In other words, a) a multi-CPU system for the number of terminals is constructed, and
Hard disk device HD or floppy disk device f
iFD, etc.) and memory MEM will be shared.

It goes without saying that in other embodiments, an optical fiber may be used as the transmission medium of the system bus BUS, and the system configuration of the present invention described above can be easily constructed.

On the other hand, silicon chips /o0-12o are obtained by removing the IC or LSI package from each unit /o-50 shown in FIG. 1, as shown in FIG.

By configuring from 200 to 220, a configuration similar to the system construction of the present invention described above can be achieved.

It is clear that each of the units 30 to 50 can have a configuration similar to the system construction of the present invention described above even if each unit has a unit configuration in which a hard disk group [HD, a floppy disk device [FD], and an additional memory MEM are integrated. It is.

As described above, the present invention connects the system bus BUS to LA.
A major feature is that it is operated based on the concept of N.

[Effects of the Invention] As explained above, according to the present invention, (1) the system bus in the terminal (data processing device) adopts the same serial transmission method as the external network, thereby improving connection affinity with the network; can be secured.

Therefore, a network system can be easily constructed, and delays in controlling data exchange between the network and the terminal can be reduced. (2) In addition, by operating the system bus using the same compensation protocol as the external network, a network system consisting of multiple terminals can be turned into a shared system for input/output devices, etc. with a multi-CPU system serving as one data processing device. I can do it. (3) In addition, electromagnetic interference can be prevented by optical transmission using optical fiber as the transmission medium of the system bus, and (4) when focusing on the flexibility of optical fiber, it is possible to design a structure in which each unit is assembled as a device. The degree of freedom is increased and the device can be made smaller. (5) Further miniaturization can be achieved by directly mounting each unit structure in the form of a silicon chip on a board or the like.

[Brief explanation of the drawing]

FIG. 1 is a block configuration diagram of one embodiment of the present invention, FIG. 2 is a network system configuration diagram, FIG. 3 is a block diagram of another embodiment of the present invention, and FIG. 4 is another embodiment of the present invention. This is an example diagram. Explanation of codes 1 to 4...Terminal, io to 50...Unit, BUS
...System bus, LAN...Network, H8
T...Host computer, HD...Hard disk device, FD...Floppy disk device, MEM...Memory, /o0-120, 200-220...Silicon chip.

Claims (1)

[Claims] 1. At least a CPU section, a network interface section that interfaces with a network, an I/O interface section that interfaces with input/output devices,
In a data processing device equipped with a memory and a memory interface unit that interfaces with the memory, a system bus that connects the CPU unit, the network interface unit, the I/O interface unit, and the memory interface unit is operated and connected using a serial transmission method. A processing device characterized by: 2. The processing device according to claim 1, wherein the system bus medium is an optical fiber. 3. The processing device according to claim 1 or 2, wherein the system bus operates using the same communication protocol as the network. 4. The processing device according to claim 1, wherein the CPU section, the network interface section, the I/O interface section, and the memory interface section are each implemented with a silicon chip. 5. In a data processing device that includes at least a CPU section, an input/output device and an I/O interface section that interfaces therewith, and a memory and a memory interface section that interfaces therewith, the CPU section, the I/O interface section, and the memory; A processing device characterized in that a system bus connecting an interface unit has the same communication protocol and the same medium as an external network. 6. The processing device according to claim 5, wherein the system bus and the network are directly connected. 7. The processing device according to claim 5 or 6, wherein the medium of the system bus and network is an optical fiber. 8. The processing device according to claim 5, wherein the CPU section, the I/O interface section, and the memory interface section are each implemented with a silicon chip.