Data transfer apparatus and data transfer method
AssigneeFujitsu Microelectronics Limited
InventorHirotaka UENO
Life of this patent
Estimating the term…
Abstract
A data transfer apparatus performing data communication by transmitting a bus use request to an arbiter between a plurality of nodes coupled in a tree shape through a bus is provided. The data transfer apparatus includes a request generation circuit which generates a highest priority request indicating that a priority level for using the bus is the highest, a determination circuit which determines the priority level of the highest priority request, and a priority level setting circuit which determines the highest priority request which takes priority based on a result of the determination circuit when a plurality of highest priority requests conflicts in a node.
Claims16
A data transfer apparatus performing data communication by transmitting a bus use request to an arbiter between a plurality of nodes coupled in a tree shape through a bus, the data transfer apparatus comprising:
- a request generation circuit which generates a highest priority request indicating that a priority level for using the bus is the highest;
- a determination circuit which determines the priority level of the highest priority request;
- and
- a priority level setting circuit which determines the highest priority request which takes priority based on a result of the determination circuit when a plurality of highest priority requests conflict in a node.
A data transfer method of performing data communication by transmitting a bus use request to an arbiter between a plurality of nodes coupled in a tree shape through a bus, the data transfer method comprising:
- generating a highest priority request indicating that a priority level for using the bus is the highest;
- determining the priority level of the highest priority request;
- and
- determining the highest priority request which takes priority based on a result of the determination circuit if a plurality of highest priority requests conflict in a node.
Dependencies are inferred from the claim text.