TL16C552A dual asynchronous communication element with FIFO

Discussion in 'Embedded Systems and Microcontrollers' started by Irmutis, Sep 30, 2009.

  1. Irmutis

    Thread Starter Member

    May 24, 2009
    17
    0
    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
     
  2. Papabravo

    Expert

    Feb 24, 2006
    10,176
    1,799
    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.
     
  3. Irmutis

    Thread Starter Member

    May 24, 2009
    17
    0
    Thank you :)
     
  4. Irmutis

    Thread Starter Member

    May 24, 2009
    17
    0
    maybe anybody else knows something more?
     
    Last edited: Sep 30, 2009
  5. blueroomelectronics

    AAC Fanatic!

    Jul 22, 2007
    1,758
    98
    Does anyone still use that old UART? I take it this is a homework assignment.
     
  6. beenthere

    Retired Moderator

    Apr 20, 2004
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    282
    Use the link to get the data sheet. It will explain in great detail just what the IC does and how it does it.
     
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