Command transmission method and command transmission apparatus in pipeline bus system
First Claim
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1. A command transmission method in a pipeline bus system to which at least one master and at least one slave are connected, the method comprising:
- determining whether a command bus of the pipeline bus system is in a busy state; and
transmitting a command from the at least one master to a target slave while selectively using a queue protocol of an arbiter of the pipeline bus system according to a result of the determination.
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Abstract
A command transmission method and apparatus, capable of improving command transmission efficiency by using a queue, when the queue is required during an operation of a command bus in a pipeline bus system includes determining whether a command bus of the pipeline bus system is in a busy state; and transmitting a command from the master to a target slave while selectively using a queue protocol of an arbiter of the pipeline bus system according to a result of the determination.
107 Citations
21 Claims
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1. A command transmission method in a pipeline bus system to which at least one master and at least one slave are connected, the method comprising:
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determining whether a command bus of the pipeline bus system is in a busy state; and
transmitting a command from the at least one master to a target slave while selectively using a queue protocol of an arbiter of the pipeline bus system according to a result of the determination. - View Dependent Claims (2, 3, 4)
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5. A command transmission apparatus of a pipeline bus system to which at least one master is connected, the apparatus comprising:
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a target slave, which is connected to the pipeline bus system and transmits state information for determining whether a command bus of the pipeline bus system is in a busy state; and
an arbiter, which transmits a command from the at least one master to the target slave while a queue protocol is selectively used according to the state information. - View Dependent Claims (6, 7, 8, 9)
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10. A command transmission apparatus of a pipeline bus system comprising:
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at least one master transmitting a command to an arbiter;
the arbiter determining a state of a command bus; and
a target slave receiving the command depending on the determination made by the arbiter using a queue protocol of the arbiter. - View Dependent Claims (11, 12, 13, 14, 15, 16, 21)
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17. A command transmission method in a pipeline bus system having a master, an arbiter and a slave, the method comprising:
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transmitting a command from the master to the arbiter;
determining a state of a command bus at the arbiter using state information received from the slave; and
transmitting the command to the slave depending on the determination made by the arbiter using the state information received from the slave and a queue protocol. - View Dependent Claims (18, 19, 20)
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Specification