1 / 23

Communication Techniques

Communication Techniques. Design Team 2 Luke LaPointe Nick Timpf Mark VanCamp Brent Woodman Steve Zuraski. www.crystalfontz.com/.../USB_Connector_End.jpg. Parallel Communication. Parallel Communication Simultaneous data bit transfer.

estarnes
Download Presentation

Communication Techniques

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Communication Techniques Design Team 2 Luke LaPointe Nick Timpf Mark VanCamp Brent Woodman Steve Zuraski www.crystalfontz.com/.../USB_Connector_End.jpg

  2. Parallel Communication Parallel Communication Simultaneous data bit transfer www.quatech.com/support/figures/comfig12.gif tor_End.jpg

  3. Characteristics of Parallel Parallel Communication Clock – Indicates if data is valid Crosstalk – EMI Clock Skew – Transfer Speed – Distance limited Other Signals – Handshaking – Directional Control

  4. Parallel ATA Parallel Communication Parallel ATA ( PATA ) Former Standard data storage connection Hard disks, Solid State Drives, CD ROM Max. cable length of 18 inches Clock Skewing

  5. Parallel Front Side Bus Parallel Communication Front Side Bus ( FSB ) … Link between CPU and Memory controller Low cost Allows multi-core processing

  6. Parallel Front Side Bus Parallel Communication Front Side Bus ( FSB ) Max throughput Width (Bytes) * CLK Freq * Transfers per CLK Cycle 32 bits ( 4 Bytes) * 200MHz * 2 xfers per cycle = 1600 MB/s Fading Technology

  7. Parallel IEEE-488 Bus Parallel Communication Laboratory Instrumentation Bus IEEE-488 Short-Range Been in use for over 30 years: Designed late 1960s Commonly known as HP-IB Daisy Chain Connections Employs 16 signal lines: 8 bi-directional used for data transfer 3 for handshake 5 for bus management

  8. Parallel Considerations Parallel Communication Three Criteria when Choosing Parallel Speed – Bit Rate and Skew Cable Length – Crosstalk Complexity – Simple Requires only a latch to copy data to the data bus

  9. New Parallel use in RF Parallel Communication Use of Parallel Communication in RF Communication In place of Morse Code (one bit at a time) Multi-input Multi-output Groups of Bits Called “Symbols” Recent Techniques such as DVB-T have transmitted over 6048 bits in parallel.

  10. Serial Communication Overview The process of sending data one bit at a time sequentially over a communication channel.

  11. Why use serial? Benefits Ideal over long distances Much cheaper than Parallel Can Operate at a faster frequency than parallel Synchronization Difficulties Reduced Less wires to worry about

  12. Purpose for Synchronization Synchronization must be established for data transfer to occur. www.quatech.com/support/figures/comfig12.gif tor_End.jpg

  13. Two Basic Types Synchronous Regulated by an external clock Requires an extra wire for clock signal Asynchronous Regulated by special signals along transmission lines www.quatech.com/support/figures/comfig12.gif tor_End.jpg

  14. Synchronous Utilizes two different signals on separate lines First signal is clock signal that is shared between the two devices Second signal carries the data

  15. Asynchronous Signals are specified by predetermined data transfer protocols. Preset frequency between devices Signaling sequence specifying beginning and ending of signal Frequency set at beginning of transfer Signaling sequence specifies beginning and ending of signal as well as transfer rate

  16. Serial Communication Serial Communication

  17. Serial Communication Benefits Ideal over long distances Much cheaper than Parallel / Less wires

  18. Serial Communication Universal Serial Bus ( USB ) Luke LaPointe Nick Timpf

  19. Serial Communication Universal Serial Bus ( USB ) Luke LaPointe Nick Timpf

  20. Serial Communication RS-232 Luke LaPointe Nick Timpf

  21. Serial Communication Bluetooth Luke LaPointe Nick Timpf

  22. Serial Communication 802.11 ( Wi-Fi ) Operating Frequency Throughput Net Bit Rate Gross Bit Rate Distance

  23. Serial Communication USB Luke LaPointe Nick Timpf

More Related