摘要:
For signals to be transmitted through a signal transmission path constituted by a relay device group for relay for each set of a plurality of channels, a timing adjustment unit is provided in both or one of a receiver-side LSI and a transmitter-side LSI for each set of a plurality of channels transmitted through the relay device group for relay so that the signals can be transmitted with accurate timing. In addition, the timing adjustment unit can adjust the timing for signals transmitted through each relay device group, the timing in one receiver-side LSI in signal transmission through a plurality of relay device groups, and the timing in one-to-many signal transmission in which signals are transmitted from one transmitter-side LSI to a plurality of receiver-side LSIs.
摘要:
A semiconductor storage device includes an external input/output port. A system bus of a server, which is extended to outside of the server, is connected to the external input/output port directly as a serial interface.
摘要:
A semiconductor storage device includes an external input/output port. A system bus of a server, which is extended to outside of the server, is connected to the external input/output port directly as a serial interface.
摘要:
The invention relates to a multiprocessor system having plural processors and an optical bus shared by the plural processors, and intends to simplify the cache control, reduce the volume of hardware, and shorten the memory access processing time. For this purpose, the multiprocessor system of the invention includes a shared memory, a cache memory connected to the shared memory, an optical bus connected to the cache memory, and plural processors connected to the optical bus, which access to the cache memory through the optical bus.
摘要:
An information processing system includes a first server, a second server and a memory unit. The first server accumulates the data which is input through a network. The second server is connected to the network and it is physically disposed at a predetermined distance from the first server, and it backs up the data from the first server. The memory unit is connected to the network and it is connected to the first server in the vicinity of the first server through a dedicated line, and it temporarily stores backup data to be sent to the second server.
摘要:
The present invention provides a multiple bus control device and others which can also be applied to access control by a signal having a directional propagation property for implementing various communication between/among modules. Each of plural modules makes a request for communication to a multiple bus control device by sending communication request information for specifying one or more communication partner modules to the multiple bus control device. The multiple bus control device checks an idle state of a module to be communicated and an idle channel in a multiple bus based upon received communication request information and permits communication between a module which sends communication request information using the idle channel and a communication partner module specified in the communication request information.
摘要:
Master node #0 and a plurality of slave nodes #1 to #4 are connected to one another via a plurality of optical couplers 20. Each of the nodes is controlled so that signal transmission between the nodes by a bus connection and a link connection is conducted via the optical couplers. In the link connection, the master node transmits bit signals corresponding to the number of the slave nodes. Each of the slave nodes transmits a bit signal with allocating the signal to a predetermined bit.
摘要:
A data control device includes: a switch portion that has a plurality of first terminals on an upstream side, a plurality of second terminals on a downstream side, and a circuit portion that optionally switches a connection between the first terminals and the second terminals based on an external switching signal; and at least one control portion that has a first input/output portion on the upstream side and a second input/output portion on the downstream side, wherein the second input/output portion is connected to the first terminal of the switch portion and the first input/output portion is connected to the second terminal of the switch portion, and wherein the at least one control portion controls an input/output of data between the first input/output portion and the second input/output portion.
摘要:
A storage system includes: a plurality of data input and output parts through; a data storing part that stores the data inputted and outputted through the plurality of data input and output parts; a range information storing part that stores range information; first control part controlling the data storing part to read and write the data in accordance with the stored range information, and that rewrites the stored range information to predetermined range information in a case where a prescribed signal is inputted from the data input and output part; and a plurality of second control parts that are provided correspondingly to the plurality of data input and output parts to input and output the data, and that input the prescribed signal to the data input and output parts in a prescribed case.
摘要:
A data control device includes: a switch portion that has a plurality of first terminals on an upstream side, a plurality of second terminals on a downstream side, and a circuit portion that optionally switches a connection between the first terminals and the second terminals based on an external switching signal; and at least one control portion that has a first input/output portion on the upstream side and a second input/output portion on the downstream side, wherein the second input/output portion is connected to the first terminal of the switch portion and the first input/output portion is connected to the second terminal of the switch portion, and wherein the at least one control portion controls an input/output of data between the first input/output portion and the second input/output portion.