![]() SCSI or Serial Advanced Technology Attachment). It implements the disk side o the protocol for a connection (e.g. A disk drive has a circuit board attached, and the board is the disk controller. Some devices have their own built-in controller. It contains a processor, microcode, and some private memory to enable it to process SCSI protocol messages. SCSI Bus Controller The protocol is complex, and this bus controller is implemented as a separate circuit board (or host adapter) that plugs into the computer. Serial Port An asynchronous port on the computer used to connect a serial device to the computer and capable of transmitting one bit at a time. It is a single chip in the computer that controls the signals wires of a serial port. Serial port controller A serial-port controller is a simple DEVICE controller. ![]() Now there is surety that destination has read the data from the data bus through data accepted signal.HyperTransport This bus is used to interconnect parts of a computer with throughput up to 25 GB/second Controller A controller is a collection of electronics THAT can operate a port, bus, or device. (iv) Disable Data accepted signal and the process ends. (iii) After this, disable Data valid signal means data on data bus is invalid now. (ii) Destination accepts data from the data bus and enable Data accepted signal. (i) Source places data on the data bus and enable Data valid signal. DATA ACCEPTED: if ON tells data is accepted otherwise not accepted. It consists of signals: DATA VALID: if ON tells data on the data bus is valid otherwise invalid.
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