A multidrop bus (MDB) is a computer bus in which all components are connected to the electrical circuit. A process of arbitration determines which device sends information at any point. The other devices listen for the data they are intended to receive.
Multidrop buses have the advantage of simplicity and extensibility, but their differing electrical characteristics make them relatively unsuitable for high frequency or high bandwidth applications.
MDB/ICP (formerly known as MDB) is a multidrop bus computer networking protocol used within the vending machine industry, currently published by the American National Automatic Merchandising Association.
The ccTalk multidrop bus protocol uses an 8 bitTTL-levelasynchronous serial protocol. It uses address randomization to allow multiple similar devices on the bus (after randomisation the devices can be distinguished by their serial number). ccTalk was developed by CoinControls, but is used by multiple vendors.
multidrop, multidrop, computer, which, components, connected, electrical, circuit, process, arbitration, determines, which, device, sends, information, point, other, devices, listen, data, they, intended, receive, have, advantage, simplicity, extensibility, th. A multidrop bus MDB is a computer bus in which all components are connected to the electrical circuit A process of arbitration determines which device sends information at any point The other devices listen for the data they are intended to receive Multidrop buses have the advantage of simplicity and extensibility but their differing electrical characteristics make them relatively unsuitable for high frequency or high bandwidth applications Contents 1 In computing 2 For vending machines 2 1 MDB ICP 2 2 ccTalk 3 See also 4 External linksIn computing editSince 2000 citation needed multidrop standards such as PCI and Parallel ATA are increasingly being replaced by point to point systems such as PCI Express and SATA Modern SDRAM chips exemplify the problem of electrical impedance discontinuity clarification needed Fully Buffered DIMM is an alternative approach to connecting multiple DRAM modules to a memory controller For vending machines editMDB ICP edit Main article Multi Drop Bus Internal Communication Protocol MDB ICP formerly known as MDB is a multidrop bus computer networking protocol used within the vending machine industry currently published by the American National Automatic Merchandising Association ccTalk edit Main article ccTalk The ccTalk multidrop bus protocol uses an 8 bit TTL level asynchronous serial protocol It uses address randomization to allow multiple similar devices on the bus after randomisation the devices can be distinguished by their serial number ccTalk was developed by CoinControls but is used by multiple vendors See also editBus network topology EIA 485 1 Wire Open collectorExternal links editIBM Journal of Research and Development Retrieved from https en wikipedia org w index php title Multidrop bus amp oldid 918234961, wikipedia, wiki, book, books, library,
