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Download Universal serial bus controller with a direct memory access mode
Transcript
U.S. Patent Jul. 24, 2001 Sheet 4 0f 7 | US 6,266,715 B1 DSEL FIG. 3 DSEL 11000 11001 11010 11011 11100 11101 11110 11111 DMA REOUEST SOURCEISYNCHRONIZATION USB ENDPOINT A RECEIVER, SOURCE SYNCHRONIZATION USB ENDPOINT A TRANSMITTER, DESTINATION SYNCHRDNIZATIDN USB ENDPOINT B RECEIVER, SOURCE SYNCHRDNIZATIDN USB ENDPOINT B TRANSMITTER, DESTINATION SYNCHRDNIZATIDN USB ENDPOINT C RECEIVER, SOURCE SYNCHRDNIZATIDN USB ENDPOINT C TRANSMITTER, DESTINATION SYNCHRDNIZATIDN USB ENDPOINT D RECEIVER, SOURCE SYNCHRDNIZATIDN USB ENDPOINT D TRANSMITTER, DESTINATION SYNCHRDNIZATIDN FIG. 4
