| 摘要 |
A priority encoder and a processing device having the priority encoder. The priority encoder includes a port selector for generating a plurality of prioritized read requests based on a plurality of write requests from a plurality of processing devices and a predetermined priority assigned to each of the plurality of processing devices, one of the plurality of processing devices being selected based on the plurality of prioritized read requests; and a port latch for holding the values of the prioritized read requests to enable one of a plurality of communication ports unless the prioritized read requests are changed, each communication port for communicating with one of the processing devices to read data from the processing device. |
