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Topic: Baud rate

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		Baud rate Baud rate is a measure of the number of times per second a signal in a communications channel varies, or makes a transition between states (states being frequencies, voltage levels, or phase angles).
		To illustrate this, first consider a modem with a baud rate of 300, using a transmission technique called FSK (Frequency Shift Keying, in which four different frequencies are turned on and off to represent digital 0 and 1 signals from both modems).
		Thus, the modem's bps rate is also 300: 300 bauds per second X 1 bit per baud = 300 bps Similarly, if a modem operating at 1200 baud were to use one change in state to send each bit, that modem's bps rate would be 1200.
	www.textfiles.com /computers/bitsbaud.txt (1195 words)

	Baud Rate
		The baud rate of a data communications system is the number of symbols per second transferred.
		Usually the baud rate of a modem will not equal the bit rate and is of no interest to the end user--only the data rate, in bits per second, is.
		Therefore in referring to the data rate of a modem, use bits/s (or kbits/s, etc.), not baud rate.
	www.pccompci.com /Baud_Rate.html (1262 words)

	* Baud Rate - (Computing): Definition (Site not responding. Last check: 2007-10-10)
		Baud: Colloquially, the word baud is used in the term "baud rate", which describes how many bits per second a modem can send or receive.
		It is worth noting that the baud rate of a modem is not the same thing as the connection speed, which is expressed in bits per second.
		Bauds were used as a measure to identify the speed of until the early 1990s because at the lower modem speeds available then the baud rate generally equalled the rate of transmission measured in bps (bits per second).
	www.en.mimi.hu /computing/baud_rate.html (470 words)

	baud - definition by dict.die.net
		baud /bawd/ (plural "baud") The unit in which the information carrying capacity or "signalling rate" of a communication channel is measured.
		The term "baud" was originally a unit of telegraph signalling speed, set at one Morse code dot per second.
		characters, the actual "data rate" of a channel is R D / P where R is the "raw" rate in bits per second, D is the number of data bits in a packet and P is the total number of bits in a packet (including packet overhead).
	dict.die.net /baud (338 words)

	Baud Rate, Data Bits, Parity
		Serial communication using RS-232 requires that you specify four parameters: the baud rate of the transmission, the number of data bits encoding a character, the sense of the optional parity bit, and the number of stop bits.
		Baud rate, as mentioned on the Definitions page, is a measure of how fast data is moving between instruments that use serial communication.
		In such a two-state coding scheme, the baud rate is identical to the maximum number of bits of information, including "control" bits, that are transmitted per second.
	francis.courtois.free.fr /jc1/serial/Basics/BitFormat.html (936 words)

	#1552: Patching The Asy To Use Alternative Baud Rates (Site not responding. Last check: 2007-10-10)
		Nonstandard baud rates of the reader's choice may be substituted for one of the "useless" values.
		Baud rates are derived by providing divisors to baud rate generators fed by a crystal-controlled master clock.
		Each frequency requires a set of distinct divisors to produce common baud rates, while remembering that the accuracy of the baud rates is determined by the quality of the crystal used.
	sunsolve.sun.com /search/document.do?assetkey=1-30-1552-1 (981 words)

	An autobaud rate detection algorithm
		The approach we use is to set the receive baud rate to 9600 baud and wait for a character to be received from the terminal.
		With the exception of the entries for 19200 and 1800 baud, all these bit patterns are exact transformations of the pattern for 9600.
		Since baud rates of 3600 and 7200 are almost never used anyway, this is not a major problem.
	www.iol.ie /~ecarroll/autobaud.html (1000 words)

	Spoofing Baud Rates for USB232 and USB485i
		This corresponds to a baud rate of 2000000.
		The baud rates generated by either of the divisor values 2.375 and 2.5 should be compatible with equipment operating at 1250000 baud.
		If the baud rate remapping list currently contains 2-byte divisor codes and it is desired to use 4-byte divisor codes, the registry value may be converted to use 4-byte divisor codes by setting bit 4 of the first byte to 1 and appending "00 00" after each 2-byte divisor code.
	www.mev.co.uk /usbbaudspoof.htm (2194 words)

	Baud Rate, Baud Rate Converter, Baud Data Rates, Baud Rate Advice
		Baud rate advice: A baud rate converter is able to take different data rates and convert them to a transmission rate equal to that of the PC.
		A baud converter rate is especially helpful with outdated equipment that works off of a smaller baud rate than that of many computers today.
		The data rates will be accepted by the baud rate converter as is and then turned into what the equipment expects to receive it at.
	dialup.lifetips.com /cat/60692/baud-rate-advice/index.html (284 words)

	About Serial Data Rates
		Baud rate and bit rate are not the same.
		Baud rate means the number of symbols or characters per second sent over a serial link.
		Therefore the bit rate is ten times the baud rate.
	www.greenleafsoft.com /AboutDataRates.asp (663 words)

	Peter Suber, "Mind and Baud Rate"
		By "baud rate" I mean the speed at which information is exchanged among (say) neurons in a brain, or among circuit elements in a computer, or among people in a society.
		The unification of the neurons in one brain is due to the uniformly high baud rate with which they can communicate with one another; unities of neurons are distinct from one another if the communication between them is markedly slower than the communication within them that constitutes them as unities.
		His argument is that if any baud rate is essential to intelligence, it is the baud rate set by the rate of change in the environment at large, not the baud rate (if any) that finally trips over a threshold and congeals intelligence from circuit-running.
	www.earlham.edu /~peters/writing/baudrate.htm (4597 words)

	BaudRate (External Interfaces/API) (Site not responding. Last check: 2007-10-10)
		The baud rate is the rate at which information is transferred in a communication channel.
		If one baud is given as 10 bits, (for example, eight data bits plus two framing bits), the bit rate is still 9600 but the baud rate is 9600/10, or 960.
		Standard baud rates include 110, 300, 600, 1200, 2400, 4800, 9600, 14400, 19200, 38400, 57600, 115200, 128000 and 256000 bits per second.
	www-rohan.sdsu.edu /doc/matlab/techdoc/matlab_external/baudrate.html (183 words)

	Serial Baud Rates (Site not responding. Last check: 2007-10-10)
		The baud rate generator in the microcontroller hardware is configured to match the desired baud rate as closely as possible.
		Since the baud rate generator has a limited number of possible rates, the actual baud rate will differ slightly from the desired baud rate.
		After changing the baud rate in the module, a user may need to close any open host applications and reconfigure them to use the new baud rate.
	www.acroname.com /brainstem/ref/h/Hardware/baudrates.html (246 words)

	Aliasing Baud Rates
		It is not necessary to alias Baud rates to achieve this, but in cases where the application software tries to set a standard Baud rate and a non-standard Baud rate is desired, this can be achieved by aliasing non-standard baud rates.
		Baud rates are calculated using a Baud rate divisor.
		As with the original divisors, note that the Baud rate table is one line in the INF.
	www.ftdichip.com /Support/Knowledgebase/aliasingbaudrates.htm (351 words)

	Using the High-Speed Micro's Serial Ports - マキシム/ダラス
		On both timers, auto-reload mode is frequently used for baud rate generation because it requires no intervention by the processor.
		In this example, timer 2 is operated in auto-reload mode to generate the baud rate for serial port 0.
		If this bit is 0 for the desired baud rate, it is not necessary to clear it in the initialization software because this is its reset default condition.
	japan.maxim-ic.com /appnotes.cfm?an_pk=75 (2934 words)

	Intel(R) MCS(R) 51/251 Microcontrollers
		The baud rate is variable and is controlled by either timer 1 or timer 2 reload values.
		The baud rate is programmable to either 1/32 or 1/64 of the oscillator frequency.
		If the error is greater than 2%, this means the baud rate generated by the microcontroller would be different from the baud rate that you expect to be transmitting and there may be a loss of data in the process.
	developer.intel.com /design/mcs51/applnots/2047.htm (1996 words)

	What is the difference between bit rate and baud rate?
		Bit rate is a measure of the number of data bits (that's 0's and 1's) transmitted in one second.
		Baud rate by definition means the number of times a signal in a communications channel changes state.
		There are cases though where a channel can send 4 bits per baud, meaning that for every 4 bits, we have one change, and in this case, the baud rate is 1/4th of the bit rate.
	expertanswercenter.techtarget.com /eac/knowledgebaseAnswer/0,,sid63_gci974686,00.html (331 words)

	8052.com - Frequently Asked Questions
		The baud rate of the serial port is normally based on the overflow rate of a timer (usually timer 1 or timer 2).
		The baud rate is determined by placing a value in TH1 which is the reload value.
		The baud rate is calculated based on the frequency at which TL1 overflows.
	www.8052.com /faq.phtml?FAQ=16 (405 words)

	Baud (Linktionary term)
		Baud is a measure of signal changes per second in a device such as a modem.
		Baud is rarely used to refer to modem speeds because it does not have a relationship to the number of bits transferred per second on high-speed modems.
		Two bits per baud is known as dibit encoding and 3 bits per baud is known as tribit encoding.
	www.linktionary.com /b/baud.html (210 words)

	baud rate Make Friend
		A Baud rate for the FT232R, FT2232C (UART mode) or FT232BM is generated using the chips internal 48MHz clock.
		The baud rate generator in the microcontroller hardware is configured to match the desired baud rate as
		The baud rate of the DDF4003 and DDF5003 is determined by the
	www.freeforms.org.uk /216896/24533/index.html (249 words)

	Remote monitoring system receiver with dual baud rate selector (US4737967)
		The operating rate is selected to be the same as the rate being used by remote equipment originating the data link with the receiver.
		The indicator signal is used to select the baud rate of a programmable baud rate generator of the RMS receiver.
		This controls the baud rate signal which is supplied to an asynchronous interface controlling data transfer between the receiver and the modem.
	www.delphion.com /details?pn10=US04737967 (226 words)

	Slice of Life: FAQ's
		If the baud rate setting on your videodisc player is different than the baud rate setting for the serial port on your computer, you cannot establish communication between the two.
		The Pioneer 4400 baud rate settings can be reset by using the control buttons on the front of the player or via a remote control unit, while observing the video monitor.
		The Pioneer 8000 baud rate settings can be reset by using the control buttons on the front of the player or via a remote control unit, while observing the video monitor.
	slice.utah.edu /sol/faq/playback.html (2495 words)

	WPS:Projects
		The bit rate is simply a measure of, well, the rate that bits are transmitted.
		The BAUD RATE and the BIT RATE are the same iff (if and only if) all of the bits that make up a character are the same period; the same length.
		For 110 baud, which generally means a Teletype Corp. Model 33, stop bits are 2.0 times the others; just to be confusing, many times it is labelled "two stop bits", which amounts to the same thing.
	www.wps.com /projects/bits-bauds-modulation-rates.html (1816 words)

	80C186/188EB and 80C186/188EC SIO Mode 0 Max Baud Rate
		This techbit explains that the maximum baud rate for Mode 0 (synchronous) operation of the serial I/O port (SIO) is incorrectly explained in the manuals.
		The actual maximum baud rate depends on the frequency and is inversely proportional to the value loaded into the baud rate compare register.
		The smaller the value in the baud rate register the higher the baud rate at which the device operates.
	support.intel.com /design/intarch/technote/2325.htm (373 words)

	Baud Rate - Search Results - ninemsn Encarta (Site not responding. Last check: 2007-10-10)
		Baud Rate, in computer science, commonly a reference to the speed at which a modem can transmit data.
		Frequency, term used in the physical sciences to denote the number of times that any regularly recurring phenomenon occurs in one second.
		Reaction, Rate of, amount of a substance that takes part in a chemical reaction in a given time.
	au.encarta.msn.com /Baud_Rate.html (82 words)

	4800 Baud Rate Omitted from Basic Manuals and Online Help
		The baud rates of 4800 and 19200 are accepted in Microsoft QuickBasic versions 3.0, 4.0, 4.0b, and 4.5 for MS-DOS, in Microsoft Basic Compiler versions 6.0 and 6.0b for MS-DOS and MS OS/2, and in Microsoft Basic Professional Development System (PDS) versions 7.0 and 7.1 for MS-DOS and MS OS/2.
		Baud rates 4800 and 19200 are omitted, but they are legal values.
		Note that with the 19200 baud rate, a direct wire connection is required.
	support.microsoft.com /kb/74675 (334 words)

	Baud Rate Selection
		The Baud rate is the bit rate frequency used to communicate with the PC via the serial communications port.
		Prior to 1995, Baud rate was fixed at 9600 Baud.
		A selectable baud rate is useful when the EMON II is communicating with the PC using a low-speed modem, or a radio link.
	www.amplepower.com /wire/emon2-95/node5.html (133 words)

	Paul's 8051 Code Library, Auto Baud Detection
		Though this code makes configuring the built-in UART easy, it should be noted that the 8051's UART requires timer1 to generate the baud rate clock and can't be changed without affecting the UART.
		This code will select the available baud rate which is the closest to what was received.
		In applications where the speed is limited by the baud rate (such as development with PAULMON), using a crystal which provides a faster baud rate can be a big improvement, even if it is a lower frequency.
	www.pjrc.com /tech/8051/autobaud.html (615 words)

	SETBAUD (Site not responding. Last check: 2007-10-10)
		When dip switch #1 on S2 is in the up position, the processor RS232 port baud rate is fixed at 9600 baud.
		This will allow laptops that have problems communicating at 115200 baud to use an intermediate baud rate that is faster than 9600 baud in order to minimize download times.
		Also, with dip switch #1 on S2 set to the up position, the processor can be set to a known baud rate (9600 baud), ensuring reliable communications.
	www.lutron.com /hwi/Help/l232/setbaud.htm (223 words)

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