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1-Wire Bus Technology and Its Application Abstract: This paper introduces the principle and signal transmission mode of the single bus technology introduced by Dallas, and describes the single bus communication protocol, finally, the single-bus data transmission method is presented based on the application of the si

frequency of the CPU to a multiple of the external frequency, so as to increase the frequency by increasing the frequency. Therefore, after 486We are exposed to two new concepts: External frequency and frequency doubling. The relationship between them and the clock speed is the external frequency X multiplier = the clock speed. The external frequency of a CPU and today'sDay we often say that the FSB (front side bus, Front End

Computer composition principle-system bus and computer composition principle1. Basic concepts of Bus 1. Why should I use a bus? Von noriman divides computers into five parts: memory, memory, controller, input device, and output device. Many channels are required to connect these devices.2. Bus

I2C bus signal timing Summary Idle bus statusThe SDA and SCL signal lines of the I2C bus are in the idle state at the same time.At this time, the output-level FET of each device is in the cutoff state, that is, the bus is released.By the two signal lines of the respective pull-up resistance to raise the level. Start

D-bus three-tier architecture D-bus is a message bus system for communication between applications for communication between processes. It is a 3-tier architecture of the IPC system, including: 1, function library Libdbus, for two applications to contact and interactive messages. 2. A message bus daemon based on Libdbu

Since I bought a car, I seldom take the bus. However, the perception of the bus for a long time, these daily Mercedes-Benz in the city on the road of the big guys, year after day, without a clear say to carry who on the road, but does not affect them always on schedule from the starting point, shun smooth to reach the end. Share a little bit about bus and softwar

Relationship between bus, device, and driver in Linux 1. Bus: As the connection channel between the host and peripherals, some buses are relatively standard and form many protocols. Such as PCI, USB, 1394, and IIC. Any device can select a suitable bus to connect to the host. Of course, the host may be the CPU itself. The memory is also connected to the host throu

8.5 system bus Optimization The system bus service requests a bus proxy (such as a logic processor) to obtain data or code from the memory subsystem. The performance impact caused by retrieving data traffic from the memory depends on the features of the workload, and the degree to which the software optimizes access to the memory, and the position implemented in

Author: Yang Shuo,Hua Qing vision embedded college lecturer. 1. Concept of Bus In computer systems, different subsystems must have interfaces to connect to each other. For example, the memory and processor need to communicate, and the processor and I/O devices also need to communicate. These tasks are completed by the bus. A bus is a shared communication link tha

This article introduces Recently, CPCI was used in the project, and the information about PCI was collected online. CPCI is a subset of PCI. The bridge chip used is divided into two types: master and slave. As for PCI, I will describe it as follows: With the rapid development of Windows Graphical User interfaces and the wide application of multimedia technology, the system requires high-speed graphic processing and I/O throughput, this makes the original ISA and eisa

Abstract: This paper introduces the specifications and features of the PXI bus, the features, functions and usage of the plx9030 chip, and provides the use of plx9030 interface chip, hardware and software implementation method of A/D data acquisition card based on PXI specification.Key words: PXI bus; plx9030; A/D data collection The PCI extension for instrumentation bu