the serial communication ports

... from the master to the slave The SPIF bit is cleared by first reading the SPSR after the SPIF flag has been set and then reading the SPDR The SPSR also contains the SPI2X bit used to set the SCK ... discussed the differences between parallel and serial communications and key serial communication- related terminology We then, in turn, discussed the operation of USART, SPI, and TWI serial communication ... being accessed The URSEL bit must be when writing to the UCSRC register and when writing to the UBRRH register UCSRA This contains the RXC, TXC, and the UDRE bits The function of these bits has...

Ngày tải lên: 29/09/2013, 20:20

... connector ♦ Discuss the baud rate of the 8051 ♦ Describe serial communication features of the 8051 ♦ Program the 8051 for serial data communication ©2002 MuDer Jeng Basics of serial communication ©2002 ... compare serial versus parallel communication ♦ List the advantages of serial communication over parallel ♦ Explain serial communication protocol ♦ Contrast synchronous versus asynchronous communication ... SCON (Serial control) register ©2002 MuDer Jeng SM0,SM1 SM0 and SM1 are D7 and D6 of the SCON SM0 0 1 ©2002 MuDer Jeng SM1 Serial Mode Serial Mode 1,8 bit data, stop bit, start bit Serial Mode Serial...

Ngày tải lên: 19/10/2013, 14:15

... go in the opposite direction—that is, where the ratio of the output power to the input is less than one For example, if the output is and the input is 10, then the ratio is 0.10 Using the formula, ... networks were the first to appear In this case, the consumer is taxed on each TV set in operation These revenues are then used to operate the network and to produce the programming The BBC in the United ... needs (essential communications) The composition of satellite communication markets has changed over the years Initially, the primary use was to extend the worldwide telephony net In the 1980s, video...

Ngày tải lên: 13/12/2013, 10:15

... by frequency (each sub-channel is allocated part of the bandwidth of the main channel) • The speed or bandwidth of the main link is the sum of the individual sub-channel speeds or bandwidth Modems ... modulator/demodulator A modem changes the digital signal to an analogue frequency, and sends this tone across the analogue link At the other end, another modem receives the signal and converts it back ... link The cost of the single high speed link is less than the required number of low speed links • It does this by time or frequency division Time Division Multiplexing • In time division, the communications...

Ngày tải lên: 23/03/2014, 13:20

... ticks The plots show the frequency distribution of the contacts as log10 of the number of nodes vs the log10 of the number of links per node for the first 400 ticks of the simulation for the given ... other agents [75,76] The overall lack of engagement for the other agent types is consistent with the real functioning of the immune system, validating the behavioral rules for the agents of the ... 1000 ticks The plots show the frequency distribution of the contacts as log10 of the number of nodes vs the log10 of the number of links per node for all 1000 ticks of the simulation for the given...

Ngày tải lên: 13/08/2014, 16:20

... nối tiếp  the Universal Asynchronous Receiver and Transmitters (UARTs)  the SPI synchronous serial interfaces  the I C synchronous serial interfaces Synchronous serial Asynchronous Serial Interfaces ... (UxRXREG)  􀁏 The error flags in the UxSTA register  reflect the error states of the first  character in the buffer  􀁏 URXDA status bit in the UxSTA register  indicates if the buffer contains ... stage, the URXISEL bits in the UxSTA register must be set to 00 or 01  On receiving the Address word, the user inspects the lower byte to verify an address match  If an address match occurred, the...

Ngày tải lên: 30/12/2015, 18:05

... power supply PIN) Then the module will enter to AT module But at this time, the baud rate is 38400 In this way, user should change the baud rate at the AT mode, if they forget the communication baud ... of the Service Class field) Thus the meaning of the bits may change, depending on the value of the ’ Major Device Class field’ When the Minor Device Class field indicates a device class ,then the ... want the master module has the function of remembering slave module, the most simply way is: First, set AT+CMODE=1 Make the master module pair with the slave module Second, set AT+CMODE=0 Then the...

Ngày tải lên: 27/01/2016, 09:27

... to the memory object, the kernel deallocates its rights to the three ports associated with that memory object The data manager receives notification of the destruction of the request and name ports, ... As in other Mach interfaces, these calls are implemented using IPC; the first argument to each call is the port to which the request is sent, and represents the object to be affected by the operation ... defined The data manager is entirely responsible for the initial values of this data and the permanent storage of the data if necessary The Mach kernel makes no assumptions about the purpose of the...

Ngày tải lên: 12/09/2012, 15:05

... intended to focus both the sender and the reader: The sender can check the subject line to see if the goal of a memo was met, and the reader can decide when, or whether, to open the incoming message ... Require Excellent Communication Skills The era of the information age and the demand of the New Economy require extraordinary leadership and negotiation skills—in other words, excellent communication ... if the logic and structure of a document is faulty, the visual cues, the layout and design of the document, cannot be effective and may, in fact, misdirect the readers' attention Together, these...

Ngày tải lên: 07/02/2013, 09:32

Ngày tải lên: 04/09/2013, 19:43

... commented on the role of the executive and their power in relation to the government control of the executive “Well they [the executives] neither have the given authority nor management skills They might ... to these role changes as prescribed by the executive level In the quote, the doctor stated that his in-group felt threatened as a group by the out-group of executives The episode demonstrated the ... 209 the changes in employees’ perceptions of their role and the groups within the organization that they identify with that are brought about by ICTenabled change, and the implications of these...

Ngày tải lên: 24/10/2013, 08:20

... you will be told if another application wants to use the port Then you can either close the port and the other application will get it, or ignore the request and the other program will get a ... JLabel( "Serial Ports" , JLabel.RIGHT)); serialPortsChoice = new JComboBox(); centerPanel.add(serialPortsChoice); serialPortsChoice.setEnabled(false); centerPanel.add(new JLabel("Parallel Ports" , ... you will The discussion ends with a serial- port printer/plotter driver The Communications API The Communications API is centered around the abstract class CommPort and its two subclasses, SerialPort...

Ngày tải lên: 27/10/2013, 14:15

... they won't it for you They will get lost in your text and either give up or come out the other end not knowing what it is they have read What about the second element of the formula, de-emphasise ... read it as part of their job are unlikely to give it their full attention On the other hand, if they immediately see their own self-interest in reading what you have written, they will so gladly ... stop them from reading it! There are various methods to generate such a strong desire to read, depending on the type of readers and the type of information Whatever the most appropriate device, the...

Ngày tải lên: 10/12/2013, 05:15

... us the ratio of two power levels, that is it expresses the gain of the system But some time we want to express the exact output power of a system rather than the gain In that case, we compare the ... such as the output is 20dB The relative power of output to input will tell us the gain of the amplifier, Po/PI = 1000mW/10mW = 100 The unit of measure used to compare two power levels is the decibel ... Telecommunications, Winter 2000 Lecture 14 Communication Basics Part-2 Digital Data Signal: Bit rate, is the number of bits transmitted per second Baud rate, is the signaling speed That is the...

Ngày tải lên: 10/12/2013, 08:15

Ngày tải lên: 12/12/2013, 04:15

Ngày tải lên: 20/12/2013, 19:15

... able to absorb them and profit from them Ensuring the existence of these conditions is the aim of innovation policy, the subject of this Communication 1.2 Need for the Communication The European ... of the patent system is progressing The drawbacks of the current European patent system are well known The Commission published a Green Paper on the Community patent in 1997 The follow-up Communication1 0 ... employers in the Netherlands, who are responsible for deducting income tax and social security payments from their employees’ gross salaries, may reduce the amount they pay to the authorities in the case...

Ngày tải lên: 16/01/2014, 16:33

... Give them your full attention Turn off the computer, put down your book, turn down the TV – whatever is necessary to show them that they have your complete attention Then look at them while they ... together and have fun with it Feed each other tastes of the food you're making Have a food fight 10 Decorate a cake together – the more icing you get on each other, the better ★ Need to clean the ... can the best job in the least amount of time Doing it together can take the "chore" out of it ★ Need to water the grass? Have a water fight! Surprise them Leave loving notes and gifts where they'll...

Ngày tải lên: 26/01/2014, 15:20

... of communication 12 The art of successful business communication 2.1 The difficulties of making communication effective If there are difficulties, and there surely are, it is not because other ... making the other person feel overpowered So, take the initiative and aim to run the kind of meeting you want – yet that the other person will find appropriate or like The first task is to get their ... managers have the job of leading and supervising their people Take people out of the organization and there is little, if anything, left Similarly, take the communication out of the operation...

Ngày tải lên: 09/02/2014, 20:59

... system The impermeability of the BBB results from the physical barrier between adjacent endothelial cells lining the microvessel wall Brain endothelial cells acquire their property as a physical ... however, their role in the function of the BBB remains unclear The physical barrier resulting from tight, adherens and gap junctions enhances transcellular, rather than paracellular, transport when the ... vessels then undergo maturation steps suitable for their environment Vessel maturation in the brain involves the acquisition of specialized features, including the BBB In an attempt to connect the...

Ngày tải lên: 18/02/2014, 11:20