A multidrop bus (MDB) is a computer bus in which all components are connected to the same set of electrical wires. A process of arbitration determines which device gets the right to be the sender of information at any point in time. The other devices must listen for the data that is intended to be received by them.
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- Der Multidrop Bus ist eine Automatenschnittstelle, die zum Anschluss von Münzgeldwechslern, Banknotenlesern oder auch bargeldlosen Zahlungssystemen benötigt wird. Eingesetzt wird sie z. B. in Getränke- oder Zigarettenautomaten.
- A multidrop bus (MDB) is a computer bus in which all components are connected to the same set of electrical wires. A process of arbitration determines which device gets the right to be the sender of information at any point in time. The other devices must listen for the data that is intended to be received by them. Multidrop buses have the advantage of simplicity and extensibility, but electronically are limited to around 200 - 400 MHz (because of reflections on the wire from the printed circuit board onto the die) and 10 - 20 cm distance. ODT circuits in modern SDRAM chips are examples of facing such a problem of electrical impedance discontinuity. Fully Buffered DIMM is a totally different approach of not using the multidrop bus architecture to connect multiple DRAM modules to a memory controller. Multidrop standards such as PCI are therefore being replaced by point-to-point systems such as PCI Express. Multidrop buses are also used by vending machine controllers to communicate with the vending machine's components, such as a currency detector (coin or note reader). Not surprisingly, these MDB buses communicate with the MDB protocol, a 8-bit serial protocol with an additional mode bit. The mode bit differentiates between ADDRESS and DATA bytes.
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- Der Multidrop Bus ist eine Automatenschnittstelle, die zum Anschluss von Münzgeldwechslern, Banknotenlesern oder auch bargeldlosen Zahlungssystemen benötigt wird. Eingesetzt wird sie z. B. in Getränke- oder Zigarettenautomaten.
- A multidrop bus (MDB) is a computer bus in which all components are connected to the same set of electrical wires. A process of arbitration determines which device gets the right to be the sender of information at any point in time. The other devices must listen for the data that is intended to be received by them.
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- Multi-Drop Bus
- Multidrop bus
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