
	Where results make sense

Topic: UART

Related Topics

Static random access memory

Random access memory

Computer memory

RISC

Flash memory

Microcontroller

PowerPC

EEPROM

Motorola 68HC12

Primary storage

CISC

BIOS

Secondary storage

Grace Patricia Kelly

Rainier III of Monaco

In the News (Mon 28 Dec 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Universal asynchronous receiver transmitter - Wikipedia, the free encyclopedia
		A UART is usually an integrated circuit used for serial communications over a computer or peripheral device serial port.
		The UART usually does not directly generate or receive the voltage levels that are put onto the wires interconnecting different equipment.
		Beside traditional wires, the UART is used for communication over other serial channels such as an optical fiber, infrared, wireless Bluetooth in its Serial Port Profile (SPP) and the DC-LIN for power line communication.
	www.wikipedia.org /wiki/UART (881 words)

	* UART - (Computing): Definition (Site not responding. Last check: 2007-10-20)
		In your PC, the UART is the key component of the serial communications port...
		Old PC's had the 8250 UART chip which is unsuitable for use with modern high speed modems...
		The serial port is usually connected to an {integrated circuit} called a {UART} which handles the conversion between serial and parallel data.
	www.bestknows.com /computing/uart.html (374 words)

	UART
		The parallel side of a UART is usually connected to the bus of a computer.
		The UART may be set up to interrupt the computer when data is received or when ready to transmit more data.
		The UART's serial connections usually go via separate line driver and line receiver integrated circuits which provide the power and voltages required to drive the serial line and give some protection against noise on the line.
	www.linuxguruz.com /foldoc/foldoc.php?UART (424 words)

	popcorn1
		However, an extensive discussion on UART is beyond the scope of this manual, and the user is encouraged to refer to textbooks or technical manuals.
		This allows the UART receiver to sample the incoming data with granularity of 1/16 the baud-rate period.
		In the case of 16450 UART, once the start-bit is detected, the next data bit’s "center" can be assured to be 24 ticks minus 2 (worse case synchronizer uncertainty) later.
	www.cmosexod.com /micro_uart.htm (2071 words)

	Serial UART, an in depth tutorial
		An UART is capable of generating a processor interrupt when a state change on the communication device occurs.
		The UART is capable of generating a trailing bit at the end of each dataword which can be used to check some data distortion.
		Modern UARTS like the 16550 are capable of handling higher input frequencies up to 24 MHz which makes it possible to communicate with a maximum speed of 1.5 Mbps.
	www.lammertbies.nl /comm/info/serial-uart.html (1723 words)

	16550 UART - Wikipedia, the free encyclopedia
		The 16550 UART (universal asynchronous receiver transmitter) is made by National Semiconductor.
		Both the hardware and software interface of the 16550 are backward compatible with the earlier 16450 UART.
		It is an integrated circuit designed for implementing the electrical interface for serial communications; it is frequently used to implement the serial port for IBM PC compatible personal computers, where it is often connected to an RS-232 interface for modems, serial mice, printers, and similar peripherals.
	www.wikipedia.org /wiki/16550_UART (121 words)

	Interfacing The Serial / RS-232 Port
		The UART incorporates a divide by 16 counter which simply divides the incoming clock signal by 16.
		The UART only has a 8 bit data bus, thus this is where the two registers are used.
		The only real use it has is to determine whether the UART is a 8250/8250B or a 8250A/16450 and even that is not very practical today as the 8250/8250B was never designed for AT's and can't hack the bus speed.
	www.beyondlogic.org /serial/serial.htm (4765 words)

	UART - Universal Asynchronous Receiver/Transmitter
		UARTs are hardware devices that convert byte-wide data streams in to serial (bit-wide) data streams.
		UART chips control the data transmission and reception of a computer's serial communications devices.
		UART controls the data transmission and receive of serial communication devices in a computer.
	www.auditmypc.com /acronym/UART.asp (797 words)

	UART - Glossary - CNET.com (Site not responding. Last check: 2007-10-20)
		Data is tranferred within the computer in units of 1 to 8 bytes, with a separate wire for each bit within the byte.
		The UART receives a byte and converts it to a sequence of voltage changes to represent the 0s and 1s on a single wire.
		At the other end, a modem converts the sound back to voltages, and another UART converts the stream of 0s and 1s back into bytes of data.
	www.cnet.com /Resources/Info/Glossary/Terms/uart.html (112 words)

	Procyon AVRlib: UART Driver/Function Library (uart.c) (Site not responding. Last check: 2007-10-20)
		This library provides both buffered and unbuffered transmit and receive functions for the AVR processor UART. Buffered access means that the UART can transmit and receive data in the "background", while your code continues executing. Also included are functions to initialize the UART, set the baud rate, flush the buffers, and check buffer status.
		In general, UARTs are used to communicate with devices that are RS-232 compatible (RS-232 is a certain kind of serial port).
		This function waits for the uart to be ready, therefore, consecutive calls to uartSendByte() will go only as fast as the data can be sent over the serial port.
	ccrma.stanford.edu /courses/250a/docs/avrlib/group__uart.html (465 words)

	Implementation of a digital UART by VHDL
		The UART can be used to control the process of breaking parallel data from the PC down into serial data that can be transmitted and vice versa for receiving data.
		The UART receiver is responsible for the synchronization of the serial data stream and the recovery of data characters.
		The UART module is composed of 2 modules; the transmitter and the receiver as indicated in Figures 4 and 5 below.
	www.ee.ualberta.ca /~elliott/ee552/studentAppNotes/1999f/UART/uart.html (1577 words)

	UART Ports (Site not responding. Last check: 2007-10-20)
		Universal Asynchronous Receiver-Transmitter (UART) ports are out-of-band management ports that provide a network administrator with a means to manage a LanRover™ Access Switch or LanRover™ D56 directly from a port, without having to connect over a network connection.
		You can use the UART Syslog feature to view the log messages that are generated at boot-up time of the unit or troubleshoot a problem.
		UART Syslog is generally used to troubleshoot a problem with the assistance of a Shiva® Technical Support Engineer.
	developer.intel.com /support/si/library/bi1012.htm (319 words)

	pcANYWHERE and UART Chips
		This could be related to the Universal Asynchronous Receiver/Transmitter (UART) chip of the serial port that the modem is connected to.
		Examine the UART Chip Used line for the COM port that the modem is connected to.
		If it indicates you are using an 8250 UART chip, these generally work in modems that run at a speed of 9600 baud or less.
	service1.symantec.com /SUPPORT/pca.nsf/f70575ac37738e6a88256689006d4438/fe99185c8c9488608825634900547428?OpenDocument (486 words)

	LanRover(TM) Access Switch/LanRover(TM) D56 - UART Ports (Site not responding. Last check: 2007-10-20)
		Universal Asynchronous Receiver-Transmitter (UART) ports are out-of-band management ports that provide a network administrator with a means to manage a LanRover™ D56 directly from a port, without having to connect over a network connection.
		The UART ports are enabled by default in the configuration.
		UART Syslog is generally used to troubleshoot a problem with the assistance of an Intel Network Systems, Inc. Technical Support Engineer.
	support.intel.com /support/si/dial/access/d50204.htm (303 words)

	New IC Caps Two Decades of UART Development - Maxim/Dallas
		Although more than 40 UART devices are available today, they either fail to satisfy some requirements of today's applications, or they satisfy requirements only through unwelcome trade-offs in size, power, or speed.
		The internal UARTs are recognizable as 16550s with compatible register sets and a lineage tracing back to the original PC and the 8250 UART.
		If a better UART was required for reasons of bandwidth or performance, the designer usually turned to a higher end µC with the UART included.
	www.maxim-ic.com /appnotes.cfm?an_pk=691 (3848 words)

	[No title]
		A UART chip is an electronic circuit that transmits and receives data through the serial port.
		Once a connection is established, the UART then reconstructs a byte of data based on the receiving line.
		If parity is in use, the UART will also check the parity for correctness and strip the parity bit off the byte being passed to the computer.
	www.usr.com /support/s-cour/s-cour-docs/10589.htm (1058 words)

	Serial and UART Tutorial
		For example, when the device connected to the UART is a modem, the modem may report the presence of a carrier on the phone line while the computer may be able to instruct the modem to reset itself or to not take calls by raising or lowering one more of these extra signals.
		The UART is usually capable of generating the continuous Spacing signal in response to a special command from the host processor.
		Because the UARTs are not directly accessed by the PC processor in this type of communication system, it is not necessary for the vendor to use UARTs that are compatible with the 8250, 16450, or the 16550 UART.
	www.freebsd.org /doc/en_US.ISO8859-1/articles/serial-uart (5857 words)

	UART - Wikipedia
		UART ist die Abkürzung für "Universal Asynchronous Receiver Transmitter".
		Dabei handelt es sich um einen Chip, der als universeller asynchroner Sender oder Empfänger arbeitet, zuständig für die Datenübertragung von einer und an eine Schnittstelle.
		Der UART wird beispielsweise in seriellen Schnittstellen eines Computers verwendet.
	de.wikipedia.org /wiki/UART (69 words)

	[No title] (Site not responding. Last check: 2007-10-20)
		What's in the modem is generally irrelevant.) A UART is present anywhere that a serial bit stream needs to be converted to a parallel byte stream, and vice versa.
		The UARTs on most PC COM ports are based on National Semiconductor Ns8250 or Ns16450 chips (or silicon megacells inside VLSI chips where you can't replace them).
		The Ns16550A UART has separate 16-byte transmit and receive FIFOs with configurable trigger levels, and can run reliably at clock rates up to 460,800 bps, although with current modem technology, there's no point in pushing your luck by going over 115,200 bps, and many modems have a max DCE-DTE (modem-computer) rate of 57,600.
	www.camden.rutgers.edu /HELP/QuestionsAnswers/Dialups/modem_uart (3713 words)

	: Class Uart
		The Uart class uses 256 byte buffers for both transmit and receive.
		If a handshaking pin is specified for a receive Uart then the peer will be signalled to stop transmitting when there are 16 bytes still free in the buffer.
		The constructor will start the Uart when it is first created.
	www.parallax.com /javelin/doc/stamp/core/Uart.html (922 words)

	UART :: Universal Asynchronous Receiver Transmitter
		UART / Universal Asynchronous Receiver/Transmitter is a microchip with programming controlling a computer's interface to attached serial devices.
		UART / Universal Asynchronous Receiver/Transmitter chips are the basis of many serial ports.
		UART / Universal Asynchronous Receiver/Transmitter chips are used on COM ports.
	www.inforingpress.com /computer-careers/uart.htm (415 words)

	Dual UART for AHB (Site not responding. Last check: 2007-10-20)
		The dual UART is accessed by any device on the AHB to provide two independent serial links to the system.
		The UART performs serial-to-parallel conversion on data received from the serial port or a modem, and parallel-to-serial conversion on data characters received from the AHB and output to the serial port.
		The UART includes a programmable baud rate generator that is capable of dividing the timing reference clock input by divisors of 2 to (216-1), and producing a timing signal (
	www.altera.com /products/ip/iup/peripherals/m-eur-ahb_uart.html (557 words)

	UART
		The UDR register contains the data to be transmitted or the data that has been received.
		This bit is set when a received character is transferred from the Receiver Shift register to UDR.
		When writing to the register, the UART Transmit Data register is written.
	web.ics.purdue.edu /~jricha14/Serial_Stuff/UART_information.htm (372 words)

	D16550: Configurable UART with FIFO
		The D16550 is a soft Core of a Universal Asynchronous Receiver/Transmitter (UART) functionally identical to the TL16C550A.
		D16550 includes a programmable baud rate generator that is capable of dividing the timing reference clock input by divisors of 1 to (2 16 -1), and producing a 16 x clock for driving the internal transmitter logic.
		In UART mode receiver and transmitter are double buffered to eliminate a need for precise synchronization between the CPU and serial data
	www.latticesemi.com /products/devtools/ip/dcd/d16550.cfm (397 words)

	Interfacing 8051 UART to I2C slave
		One problem with using the UART is that I2C bus is synchronous; you have a clock for every data bit to tell you when the bit is valid.
		A UART is asynchronous (hence the 'A'); there's no extra clock line, and you time from the edge of the start bit, hoping that the transmit and receive clocks are close enough that you don't wander "out of the bit" and sample the wrong value.
		There is plenty of code around detailing how to ise the uart and implementing an I2C master, all you need to do is come up with a method of connecting the two via software.
	www.keil.com /discuss/docs/thread2436.htm (850 words)

	National P/N PC16550D - Universal Asynchronous Receiver/Transmitter with FIFO's (Site not responding. Last check: 2007-10-20)
		The UART performs serial-to-parallel conversion on data characters received from a peripheral device or a MODEM, and parallel-to-serial conversion on data characters received from the CPU.
		Status information reported includes the type and condition of the transfer operations being performed by the UART, as well as any error conditions (parity, overrun, framing, or break interrupt).
		The UART includes a programmable baud rate generator that is capable of dividing the timing reference clock input by divisors of 1 to (2
	www.national.com /pf/PC/PC16550D.html (560 words)

	Intel(R) MCS(R) 51/251 Microcontrollers
		One feature that all of the microcontrollers in the MCS®-51 family have in common is an integrated UART (Universal Asynchronous Receiver Transmitter).
		When operating in mode 0 of the UART, this bit is set by hardware when the 8th bit is received.
		In all other UART operating modes, the RI bit is set by hardware upon reception halfway through the stop bit.
	www.intel.com /design/mcs51/applnots/2047.htm (2009 words)

	UART
		A UART (Universal Asynchronous Receiver/Transmitter) is a circuit that performs serial data communication between two different circuits.
		The UART consists of two main circuits, a sender circuit and a receiver circuit.
		Our UART receiver consists of four circuits; the receiver circuit that contains the receiver control unit and the data path elements, a clock divider circuit which is used to step down the system clock, and the
	www.cs.utah.edu /~gavin/3710/UartExtension.htm (499 words)

	UART Programming (Site not responding. Last check: 2007-10-20)
		The Universal Asynchronous Receiver Transmitter (UART) is the chip which implements the serial port on an IBM compatible PC.
		Other UART registers are used to control this I/O. The UART registers are accessed under program control as 808x/80x86 I/O ports.
		Data should be received from the UART by an interrupt routine when an interrupt indicates that incoming data is available.
	member.newsguy.com /~ndaskal/pages/cms/uart.html (700 words)

	UART
		Universal Asynchronous Receiver-Transmitter, UART is a chip used to manage computer serial ports, disk drive interrupts, screen refresh cycles, and any other device that requires timing.
		With a serial port transmission the UART converts the bytes into serial bits and transmitting those bits through an asynchronous transmission stripping out the start and stop bits for each character.
		8250 UART was the original UART and was capable of speeds up to 9600 bps with a 1-byte FIFO.
	www.xmission.com /~comphope/jargon/u/uart.htm (182 words)

Try your search on: Qwika (all wikis)