| 摘要 |
The present invention provides a priority encoder comprising a first, second and third resolving-encoding circuit, each of which has a plurality of input terminals receiving a plurality of requests, determines one of the input terminals receiving one of the requests as a prior terminal, and outputs a forward request and an address of the prior terminal, wherein the forward requests of the first and second resolving-encoding circuit are received as the requests of the third resolving-encoding circuit, and a multiplexer receiving the addresses output from the first and second resolving-encoding circuit, and selectively outputting one of the received addresses according to the prior terminal determined by the third resolving-encoding circuit.
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