Example Of Serial Communication Protocol
- Serial Interface Protocols
- Example Of Serial Communication Protocol Examples
- Example Of Serial Communication Protocol Example
- Serial Communication Interface
- Example Of Serial Communication Protocol Number
- Serial Communication
In telecommunication and data transmission, serial communication is the process of sending data one bit at a time, sequentially, over a communication channel or computer bus. This is in contrast to parallel communication, where several bits are sent as a whole, on a link with several parallel channels.
Nov 25, 2018 Microwire is a three wire serial communication protocol. It has a serial I/O port on the microcontroller to interface with peripheral chips. It supports speed up to 3Mbps. It faster than i2c and subset of SPI protocol. Serial Communication is the vital part in the area of Electronics and Embedded Systems. The rate of data transfer. RS232 is a standard protocol used for serial communication, it is used for connecting computer and its peripheral devices to allow serial data exchange between them. As it obtains the voltage for the path used for the data exchange between the devices. It is used in serial communication up to 50 feet with the rate of 1.492kbps. In this post, we present a robust serial communication protocol to interface an Arduino with a computer (e.g. A Raspberry Pi). This protocol was designed to be simple, flexible and easy to use. Simple serial point-to-point communication protocol. Hardware and physical layer protocol. Since RS-232C serial standard used in the PC. (for example a PLC). DCE stands for Data Communication Equipment or Data Circuit Terminating Equipment and an example for DCE is a modem. RS232 was introduced in 1960’s and was originally known as EIA Recommended Standard 232. RS232 is one of the oldest serial communication standards with ensured simple connectivity and compatibility across different manufacturers. Now that we’ve covered the basics of serial communication in embedded systems, let’s move ahead and discuss the various types of serial communication protocols. CAN Protocol The CAN or Controller Area Network protocol was conceived by Robert Bosch (of GmbH) in the 1980s.
Serial communication is used for all long-haul communication and most computer networks, where the cost of cable and synchronization difficulties make parallel communication impractical. Serial computer buses are becoming more common even at shorter distances, as improved signal integrity and transmission speeds in newer serial technologies have begun to outweigh the parallel bus's advantage of simplicity (no need for serializer and deserializer, or SerDes) and to outstrip its disadvantages (clock skew, interconnect density). The migration from PCI to PCI Express is an example.
Cables[edit]
Many serial communication systems were originally designed to transfer data over relatively large distances through some sort of data cable.
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Practically all long-distance communication transmits data one bit at a time, rather than in parallel, because it reduces the cost of the cable. The cables that carry this data (other than 'the' serial cable) and the computer ports they plug into are usually referred to with a more specific name, to reduce confusion.
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Keyboard and mouse cables and ports are almost invariably serial—such as PS/2 port, Apple Desktop Bus and USB.
Serial Interface Protocols
The cables that carry digital video are almost invariably serial—such as coax cable plugged into a HD-SDI port, a webcam plugged into a USB port or Firewire port, Ethernet cable connecting an IP camera to a Power over Ethernet port, FPD-Link, etc.
Other such cables and ports, transmitting data one bit at a time, include Serial ATA, Serial SCSI, Ethernet cable plugged into Ethernet ports, the Display Data Channel using previously reserved pins of the VGA connector or the DVI port or the HDMI port.
Serial buses[edit]
Many communication systems were generally designed to connect two integrated circuits on the same printed circuit board, connected by signal traces on that board (rather than external cables).
Integrated circuits are more expensive when they have more pins. To reduce the number of pins in a package, many ICs use a serial bus to transfer data when speed is not important. Some examples of such low-cost serial buses include RS-232, SPI, I²C, DC-BUS, UNI/O, 1-Wire and PCI Express. In IC, serial bus may be typically implemented by using multiplexer (which utilizes technique called multiplexing).[1]
Serial versus parallel[edit]
The communication links, across which computers (or parts of computers) talk to one another, may be either serial or parallel. A parallel link transmits several streams of data simultaneously along multiple channels (e.g., wires, printed circuit tracks, or optical fibers); whereas, a serial link transmits only a single stream of data.
Example Of Serial Communication Protocol Examples
Although a serial link may seem inferior to a parallel one, since it can transmit less data per clock cycle, it is often the case that serial links can be clocked considerably faster than parallel links in order to achieve a higher data rate. Several factors allow serial to be clocked at a higher rate:
- Clock skew between different channels is not an issue (for unclocked asynchronous serial communication links).
- A serial connection requires fewer interconnecting cables (e.g., wires/fibers) and hence occupies less space. The extra space allows for better isolation of the channel from its surroundings.
- Crosstalk is less of an issue, because there are fewer conductors in proximity.
Example Of Serial Communication Protocol Example
In many cases, serial is cheaper to implement than parallel. Many ICs have serial interfaces, as opposed to parallel ones, so that they have fewer pins and are therefore less expensive.
Serial Communication Interface
Examples of architectures[edit]
- ARINC 818 Avionics Digital Video Bus
- Atari SIO (Joe Decuir credits his work on Atari SIO as the basis of USB)
- CAN Control Area Network Vehicle Bus
- ccTalk Used in the money transaction and point-of-sale industry
- CoaXPress industrial camera protocol over Coax
- DC-BUS communication over DC power lines
- DMX512 control of theatrical lighting
- Fibre Channel (high-speed, for connecting computers to mass storage devices)
- InfiniBand (very high speed, broadly comparable in scope to PCI)
- I²C multidrop serial bus
- MIDI control of electronic musical instruments
- RS-232 (low-speed, implemented by serial ports)
- RS-422 multidrop serial bus
- RS-485 multidrop multimaster serial bus
- SDI-12 industrial sensor protocol
- SONET and SDH (high speed telecommunication over optical fibers)
- SpaceWire Spacecraft communication network
- T-1, E-1 and variants (high speed telecommunication over copper pairs)
- Universal Serial Bus (for connecting peripherals to computers)
- UNI/O multidrop serial bus
- 1-Wire multidrop serial bus
See also[edit]
- High-Level Data Link Control (HDLC)
- Universal asynchronous receiver/transmitter (UART)
References[edit]
- ^'Circuit Implementation Using Multiplexers'. www.ee.surrey.ac.uk. Retrieved 2019-04-30.
External links[edit]
Example Of Serial Communication Protocol Number
- Serial Interface Tutorial for Robotics (contains many practical examples)