03-01-2011, 03:31 PM
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Presented By
pratish chandra dwivedi
kuldeep Kumar
devendra kumar
PANKAJ KUMAR SHARMA
CONTENT
History of UART.
Introduction of UART.
UART types.
UART design and protocol.
Results and discussions:-
Voltage-Scaling
Clock-Gating
Multi-Threshold CMOS (MT-CMOS)
Complete Power Shutdown
Data –Stream Dependent Shutdown
Low Transition ASCII (LT-ASCII)
Conclusion
References
HISTORY OF UART
The first UART-like devices (with fixed-length pulses) were rotating mechanical switches (commutators).
The Western made Single-chip UART WD1402A around 1971.
Then Motorola introduced around 1975.
After it National Semiconductor introduced around 1980’s.
INTRODUCTION
An UART (universal asynchronous receiver / transmitter) performs serial communications.
It Changes incoming parallel information to serial data.
It Perform all the tasks like timing, parity checking etc.
It is used in conjunction with other communication standards such as EIA RS-232.
