control bus


Also found in: Acronyms, Wikipedia.

control bus

(architecture)
In a digital computer, the signal paths that carry commands from the instruction decode logic to various different functional units such as the ALU, memory address register, memory data register and other buffers.

Named by analogy with the address bus and data bus, each of which carries a set of related signals, the signals carried by the control bus are more independant.

Some might include other signals such as timing (clock) and status under the term, further reducing its similarity to other busses.
References in periodicals archive ?
In aircraft, 1394 is being used widely as an-flight control bus, and the VersaPHY will be able to sharply reduce the complexity of single function modules such as actuators and sensors.
Dozens of headstones were trashed at Saltwell Cemetery in Gateshead when an out of control bus crashed through the railings.
For his part, Minister of Internal Trade and Consumer Protection Hassan Safiyeh highlighted the ministry's procedures to control bus fees, while Governor of the Central Bank of Syria Adib Mayaleh said that the bill on gold ingots is restricted to gold bars whose weights range between 1/2 kg and 1kg or the 10 tola gold bar, which is equivalent to 116.
Rome, Ramadan 20, 1434, Jul 29, 2013, SPA -- Italian authorities were Monday tackling the difficult job of identifying the dead after an out of control bus plunged off a highway, leaving at least 38 dead and ten injured.
These functions are also programmable through the serial camera control bus interface.
The OV2643 and OV2659 come with interfaces for standard serial camera control bus and digital video port (DVP) parallel output, offering support for UXGA, SVGA and 720p with programmable controls for frame rate as well as video operations.
The OV7727 comes with a full array of high end image processing functions, including automatic exposure control, gamma correction, automatic white balance control, and defect pixel correction, which are all programmable through the serial camera control bus interface.
2 per cent in January this year since the introduction of the Operation Control Centre, the first of its kind in the Middle East installed to control bus operations.
With this system the pressure feed goes directly into the valve head and the control signal is supplied either from a local closed loop control sensor or switch; or from a PLC/machine controller via a control bus - AS-Interface or DeviceNet - or multipole (parallel) directly into the valve.
All travel is free, with maps and timetables available on the day from the control bus at the Transporter terminal.
ni]} be a set of linguistic variables state just after disturbance(JAD) corresponding to a load control bus i, where [x.
but - after last week's U-turns on letting councils control bus services and high-speed - it is time to reassess his reputation.