| 摘要 |
A serial poll request node and circuit are provided. The node includes a data token input and output, first and second acknowledge inputs, and an arbitrating switch. An acknowledge circuit is configured to receive as an input the first and second acknowledge inputs and at least one output of the arbitrating switch, and to generate an enable signal in response to at least the absence of a pending request signal and both the first and second acknowledge inputs simultaneously receiving acknowledge signals.
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