APPARATUS OF A DUAL-CLOCK FIFO FOR PACKET DELIVERY

摘要

The invention discloses doubleclocking first in first out devices for being grouped transmission, designs hardware using hardware logic convenient for the data transmission between different clocks. Disclosed doubleclocking first in first out device includes: that a kind of multi-clock data queue carries out being located at the first clock domain and second clock domain, and will grouping; Package informatin queue carries out the first clock domain, and by the multi-clock data queue of the grouping stored in information data and tail pointer, when write in packet to multi-clock data queue is completed; A kind of first clock domain of writing state machine operation, and work as write in packet and completed to multi-clock data queue, the tail pointer of the queue of information is read in package informatin, and notifies the information tail pointer of reading state machine; With the second clock domain of the operation of above-mentioned reading state machine, and determine whether grouping gets out information to be read, according to from write state machine. ;The 2016 of copyright KIPO submissions