IC Bus Interfaces and Controllers Information

 IC Bus Interfaces and Controllers InformationIC bus interfaces and bus controllers or bus masters are interfaces between most standard parallel-bus microcontrollers or microprocessors and the serial bus. There are many different types of IC bus interfaces and controllers. Examples include an IC bus interface, bus controller, bus interface unit and a USB interface.


An IC bus interface needs a common ground, which is the ground plane in circuit board applications and a separate wire in inter-circuit-board connections. A bus controller serves as an interface between most standard parallel-bus microcontrollers/microprocessors and the serial I2C bus.


A bus controller enables a parallel bus system to communicate bi-directionally with the I2C bus and is commonly referred to as the bus master. A bus interface unit is a part of a processor that interfaces with the rest of the PC parts.


A bus interface unit consists of a bus interface circuit which is responsible for responding to all signals that go to the processor, and generating all signals that go from the processor to other parts of a system. A USB interface connects more than computers and peripherals. A USB circuit controller can be used to connect with other people through the power of PC-telephone and video conferencing. Other IC bus interfaces and controllers are also commonly available.


What Do IC Bus Interfaces and Controllers Do?

 IC Bus Interfaces and Controllers InformationThere are several ways in which IC bus interfaces and bus controllers function. A normal IC bus interface controller chip controller provides the common interface needed for connection of HDD, CD and DVD drives or memory cards, such as CompactFlash, and a single channel for up to two devices in a master/slave configuration.


An advanced bus interface unit requires only two lines (clock and data) for full duplex communication between multiple devices and can run at a fairly low speed (100 kHz to 400 kHz). A USB bus is a bi-directional serial interface cable bus.


Data is transferred at three different rates over a maximum cable length of 4 meters over four wires, two of which carry data on a balanced twisted pair. A USB may operate at any speed from 10kbps to 400Mbps in one of three speed modes. IC bus interfaces and controllers are designed to meet most industry specifications.


How Are They Used?

 IC Bus Interfaces and Controllers InformationIC bus interfaces and bus controllers are used in a variety of applications. A growing number of applications demand storage and connectivity for digital content. IC bus interfaces are applied to personal video recorders (PVRs), set top boxes (STBs), information appliances, home gateways, simple routers, and routers with network shared storage and/or printers.


Interfaces such as a USB and IDE are becoming standard for device connectivity and storage. IC bus interfaces and controllers must adhere to the American programming interface (API) standards.


Related Standards


SMD 5962-84069 - Microcircuit, digital, cmos, bus controller, monolithic silicon.
MIL-M-38510/423 - Microcircuits, digital, schottky ttl, system controller and bus driver, monolithic silicon.

SMD 5962-99581 - Microcircuit, digital, cmos, bus interface terminal controller, monolithic silicon.


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Texas Instruments High-Performance Analog | Data Device Corporation | ROHM Semiconductor, USA LLC