... access the serial port, either by giving the userpermission to the serial port, or by changing the per-missions of the program to allow access to the serial port. Code to open the serialport under ... the Serial Port The next action that must take place before data canbe written to or read from the serialport is to appro-priately configure the port. Port configuration op-tions include the communication ... the serial port is currently open, and some method ofgetting the current settings of the serialport device.It is also important to realize that this API appliesonly to non-overlapped communication...
... discussion of thisadvanced serialcommunication system.2.5 SUMMARYIn this chapter, we have discussed the differences between parallel and serial communicationsand key serial communication- related ... serialcommunication features aboard theATmega16, we review serialcommunication terminology.2.2 SERIALCOMMUNICATION TERMINOLOGYIn this section, we review common terminology associated with serial ... different serialcommunication subsystems,including the serial USART, SPI, and TWI. What all of these systems have in common is the serial transmission of data. Before discussing the different serial...
... communication communication♦List the advantages of serialcommunication List the advantages of serialcommunication over parallelover parallel♦Explain serialcommunication protocolExplain serialcommunication protocol♦Contrast ... 8051♦Describe serialcommunication features of the 8051Describe serialcommunication features of the 8051♦Program the 8051 for serial data communication Program the 8051 for serial data communication ... Jeng2002 MuDer JengBasics of serial communication Basics of serial communication 2002 MuDer Jeng2002 MuDer JengData communication classificationData communication classification ...
... manage port rights and control message reception. port_ allocate(task, port) Allocate a new port. port_ deallocate(task, port) Deallocate the task’s rights to this port. port_ enable(task, port) Add ... this port to the task’s default group of ports for msg_receive. port_ disable(task, port) Remove this port from the task’s default group of ports for msg_receive. port_ messages(task, ports, ports_count)Return ... will receive a port death message for the pager request port. It can then release its data structures and resources for this file.void port_ death(request _port) port_ t request _port; { port_ t memory_object;char...
... technologies that are not connected by a wireãWireless communicationsTransmission of user data without the use of wiresãWireless data communications technologies include:BluetoothWireless ... 12Satellite Networks (continued) 20Wireless Local Area Networks (continued) 35GovernmentãWireless communication Lets city employees and contractors at remote sites access data stored in a central ... roadside assistance servicesãSatellite radioTransmits over 150 music and talk stationsãAirport terminals are likewise turning to wireless technologiesãAirplanes themselves are being equipped...
... control, handle and ship its inventorySports and EntertainmentãRFID tags are used for monitoring tire pressure in race cars–Can be used in transport trucks and interstate busesãMonitoring ... information in electronic tagsãThat contain an antenna and a chip 16RFID ApplicationsTransportation and MilitaryãRFID tags embedded in standard courier packagesCan speed up and help ... activate an alarmChipless tags (known as RF fibers)ãUse fibers or materials that reflect a portion of the reader’s signal back 13RFID System Components (continued) 6RFID System Components...
... moves of equipmentMore efficient use of office space–Lower support and maintenance costs Wireless CommunicationsWireless Communications in Business 11SummaryãWireless technology can ... hours each day 2ObjectivesãList the advantages of wireless communications for businessesãDiscuss the challenges of wireless communications 7Data Availability Around the ClockãWireless ... ClockãWireless technology can help make data available from almost anywhere at any time 8Improved IT SupportãSignificant advantages include:Easier system setupDecreased cabling costs compared to...
... UMTS Business Case, No. 3 Report from the UMTS Forum,February 1999.[UMT-99b] Report on Candidate Extension Bands for UMTS/IMT-200 Terrestrial Component, No. 7 Report fromthe UMTS Forum, 2nd ... on Western Europe, No. 8Report from the UMTS Forum, March 1999.[UMT-00a] The UMTS Third Generation Market – Structuring the Service Revenues Opportunities, No. 9 Reportfrom the UMTS Forum, ... termination,portable radio termination, and interworking unit, as shown in Figure 1.12. The portableradio termination is equivalent to a mobile terminal’s radio part, and the fixed networkMobile Communication...
... Mobile Satellite Communication Networks346MIPv6 Mobile IP Version 6MM Mobility ManagementMNC Mobile Network CodeMoU Memorandum of UnderstandingMS Mobile StationMSAS Multi-Transport Satellite ... European Space AgencyETACS Extended TACSETSI European Telecommunications Standards InstituteEU European UnionEUTELSAT European Telecommunication Satellite OrganisationF-FH Fast FHFACCH Fast ... Future Public Land Mobile Telecommunication SystemsFS Fixed StationFSK Frequency Shift KeyingFSL Free Space LossFTP File Transfer Protocol Mobile Satellite Communication Networks344FVC...
... Payload (ESP) can be used with Transport or Tunnel mode, creating four possible transport mechanisms:–AH in transport mode–AH in tunnel mode–ESP in transport mode–ESP in tunnel mode Layer ... wireless LANs)ãUses port- based authentication mechanisms –Switch denies access to anyone other than an authorized user attempting to connect to the network through that port Hardening File ... authenticator IEEE 802.1x (continued)ãSeveral variations of EAP can be used with 802.1x:–EAP-Transport Layer Security (EAP-TLS)–Lightweight EAP (LEAP)–EAP-Tunneled TLS (EAP-TTLS)–Protected...