| 摘要 |
A method for updating data of a plug control register in a digital interface having a plurality of audio/video nodes. The method includes the steps of retrieving a signal that determines whether a first audio/video node is entitled to update a value of the plug control register of a second audio/video node, when the first audio/video node requests that the second audio/video node update a value of the plug control register through a read/lock transaction; transmitting the determining signal to the first audio/video node through a lock response packet; and updating the value of the plug control register of the second audio/video node with a data value transmitted from the first audio/video node, when the first audio/video node is entitled to update the value of the plug control register of the second audio/video node and when an argument value transmitted from the first audio/video node is equal to the value of the plug control register of the second audio/video node.
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