B. E./B. Tech. Degree examination, april/may 2011 Sixth Semester


What is the various programmed data transfer method



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3. What is the various programmed data transfer method

DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING
3
rd
YEAR 6
th
SEMESTER
i) Synchronous data transfer ii) Asynchronous data transfer iii) Interrupt driven data transfer
4. What is synchronous data transfer
It is a data method which is used when the IO device and the microprocessor match in speed. The transfer a data to or from the device, the user program issues a suitable instruction addressing the device. The data transfer is completed at the end of the execution of this instruction.

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