Datenverarbeitungsverwaltungsvorrichtung, Modusverwaltungsvorrichtung und Modusverwaltungsverfahren

Data processing management apparatus, mode management apparatus and mode management method

DEVICE AND A METHOD FOR CONTROLLING REQUEST TRANSMISSION BY ARBITRATING/TRANSMITTING ADDRESS REQUESTS RECEIVED FROM VARIOUS KINDS OF EXTERNAL DEVICES AND TRANSMITTING COLLECTING REQUEST RESPONSES COLLECTED FROM THE EXTERNAL DEVICES

PURPOSE: A device and a method for controlling request transmission are provided to avoid live lock and prevent system stop by arbitrating/transmitting address requests received from various kinds of external devices and transmitting collecting request responses collected from the external devices. CONSTITUTION: An address request storing part(32a) stores the address requests temporarily. A transmission stop controller(33b) stops transmitting the address request stored in the address request storing part at a predetermined timing. A request counter counts the address requests of each type by monitoring the address requests received from various kinds of devices or external devices. The transmission stop controller stops transmitting the address request in the predetermined timing whenever a value counted by the request counter reaches a threshold value. © KIPO 2008 ...

Error identifying method, data processing device, and semiconductor device

A data processing device which performs a data transmission between semiconductor devices using a plurality of signal lines. In the data processing device, when there occurs an error in a data transmission from a transmitting device to a receiving device using a plurality of signal lines, data in which the error has occurred is stored. The stored data is compared bit by bit with non-erroneous data, thereby designating a bit in which error has occurred in the stored data.

ARBITRATION CIRCUIT FOR SELECTING A REQUEST RECEIVED FROM A PLURALITY OF UNITS IN A CROSSBAR CONNECTING WITH THE UNITS, THE CROSSBAR, A REQUEST SELECTION METHOD, AND AN INFORMATION PROCESSING DEVICE

PURPOSE: An arbitration circuit, a crossbar, a request selection method, and an information processing device are provided to prevent an issued request from left alone for a long time irrespective of a request situation by enabling the request to select a group belonging to the unsettled unit with high probability for the long time. CONSTITUTION: A selector(732) receives the request from a queue buffer(711) of an SM(System board Module)(710) and an I/O(Input/Output) module(720). A priority logic unit(731) specifies the units storing an unhandled request by a queue exist signal received from a queue controller(712) of each queue buffer, and selects the unit selecting the request among the units according to a rule valid at that time. The rule is dynamically changed by a carry signal output from a counter(733). The selector receives a selection signal according to a selection result and selects/outputs the request of the selected unit. © KIPO 2008 ...

DATA PROCESSING DEVICE, A MODE MANAGEMENT DEVICE, AND A MODE MANAGEMENT METHOD FOR IMPROVING ERROR TOLERANCE OF A COMPUTER HAVING A DUALIZED ADDRESS CROSSBAR

PURPOSE: A data processing device, a mode management device, and a mode management method are provided to improve error tolerance of a computer with a dualized address crossbar by switching a first mode to a second mode of other crossbars affected by error, which occurs in one of a plurality of crossbars, while the crossbars are operated in the first mode dualizing the crossbars. CONSTITUTION: A plurality of crossbars(40) are operated by a plurality of modes applied to connection among units. A mode switch switches the first mode to the second mode of mode setting of other crossbars affected by the error, which occurs in one of the crossbars, when the crossbars are operated in the first mode for dualizing the crossbars. The mode switch switches the mode of other crossbars by receiving an error notification signal from the error crossbar and transmitting a setting signal for switching the first mode to the second mode. © KIPO 2008 ...

Transmission control device and transmission control method

Transmission control device and transmission control method

An address crossbar switch temporarily buffers received requests while monitoring the requests, and counts requests of a predetermined type (for example, long-packet address requests). When a counter value exceeds a predetermined threshold value (for example, when a long-packet counter value exceeds 100), the address crossbar switch suspends broadcasting the address requests for a predetermined time period. After the predetermined time period has elapsed, the address crossbar switch restarts broadcasting the address requests in the order in which they were received.

Arbiter, crossbar, request selection method and information processing device

A plurality of units (processing units) connected to a crossbar are divided into a plurality of groups and one is selected from requests selected for each group according to priority among the groups that changes at prescribed time intervals. Thus, the number of times per unit time requests issued from units belonging to a group whose priority is improved at the prescribed time intervals can be maintained over a certain value regardless of a request state.

Transmission control device and transmission control method

An address crossbar switch temporarily buffers received requests while monitoring the requests, and counts requests of a predetermined type (for example, long-packet address requests). When a counter value exceeds a predetermined threshold value (for example, when a long-packet counter value exceeds 100), the address crossbar switch suspends broadcasting the address requests for a predetermined time period. After the predetermined time period has elapsed, the address crossbar switch restarts broadcasting the address requests in the order in which they were received.

ARBITER, CROSSBAR, REQUEST SELECTION METHOD AND INFORMATION PROCESSING DEVICE

A plurality of units (processing units) connected to a crossbar are divided into a plurality of groups and one is selected from requests selected for each group according to priority among the groups that changes at prescribed time intervals. Thus, the number of times per unit time requests issued from units belonging to a group whose priority is improved at the prescribed time intervals can be maintained over a certain value regardless of a request state.

DATA PROCESSING MANAGEMENT APPARATUS, MODE MANAGEMENT APPARATUS AND MODE MANAGEMENT METHOD

A configuration is such as to change a mode setup of other crossbars influenced by an error occurring in one of plural crossbars from a first mode to a second mode for operating each of them independently (i.e., in a singularization mode) in the case of placing plural crossbars (i.e., crossbar units) for connecting incorporated units (i.e., processing units) and operating the plural crossbars in the first mode (i.e., a dualized mode) for dualizing them, thereby continuing an operation of a system by using a normally operable part when an error occurs in a part of the system.

Arbiter, crossbar, request selection method and information processing device

Data processing management apparatus, mode management apparatus and mode management method

A configuration is such as to change a mode setup of other crossbars influenced by an error occurring in one of plural crossbars from a first mode to a second mode for operating each of them independently (i.e., in a singularization mode) in the case of placing plural crossbars (i.e., crossbar units) for connecting incorporated units (i.e., processing units) and operating the plural crossbars in the first mode (i.e., a dualized mode) for dualizing them, thereby continuing an operation of a system by using a normally operable part when an error occurs in a part of the system.

ERROR IDENTIFYING METHOD, DATA PROCESSING DEVICE, AND SEMICONDUCTOR DEVICE

A data processing device which performs a data transmission between semiconductor devices using a plurality of signal lines. In the data processing device, when there occurs an error in a data transmission from a transmitting device to a receiving device using a plurality of signal lines, data in which the error has occurred is stored. The stored data is compared bit by bit with non-erroneous data, thereby designating a bit in which error has occurred in the stored data.

Data processing management apparatus, mode management apparatus and mode management method

A configuration is such as to change a mode setup of other crossbars influenced by an error occurring in one of plural crossbars from a first mode to a second mode for operating each of them independently (i.e., in a singularization mode) in the case of placing plural crossbars (i.e., crossbar units) for connecting incorporated units (i.e., processing units) and operating the plural crossbars in the first mode (i.e., a dualized mode) for dualizing them, thereby continuing an operation of a system by using a normally operable part when an error occurs in a part of the system.

Arbiter, crossbar, request selection method and information processing device