Hi,

I have a problem, I need to understandt what does TL16C552A do? What is FIFO (I know that it is ''first in first out'') and why it is used in this element?
I can't find easy understandable material in internet except Texas instruments datasheet. Could anybody help me and write me about it or write any good internet sites, links to pdf, books to download...

This is datasheet
http://focus.ti.com/docs/prod/folders/print/tl16c552a.html

 

The FIFO is a buffer which holds onto received characters until the CPU can get around to reading them from the chip. This is especially important as the serial bus data rate is increased from say 9600 bits persecond upto 115,200 bits per second or higher.

There may also be a FIFO on the trnasmitter, but this is generally less critical for the CPU.

The chip also performs the functions of parallel to serial conversion and framing for the transmitter, and serial to parallel conversion and framing for the receiver.

 

Thank you

 

maybe anybody else knows something more?

 

Does anyone still use that old UART? I take it this is a homework assignment.

 

Use the link to get the data sheet. It will explain in great detail just what the IC does and how it does it.