The clock signal is a periodic pulse signal, a The length of the clock pulse is called a clock cycle Clock Cycle , is the reciprocal of the clock frequency main frequency , the clock cycle is the time reference in the computer system, is an important performance index of the computer, and is also the scale of timing analysis, The main frequency is 5MHz, the clock period is ns, the main frequency is 10MHz, and the clock period is ns. The CPU can exchange information with the outside through the bus.
The CPU exchanges information with the outside through the bus interface unit, which is called a bus operation. The time it takes is called a bus cycle Bus Cycle , also known as the machine cycle Machine Cycle.
A bus cycle is composed of several clock cycles, the types of bus operations are different, and the bus cycles are also different. The data transmission completed within a bus cycle generally has two processes: address transfer and data transfer. The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud.
If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email. If you find any instances of plagiarism from the community, please send an email to: info-contact alibabacloud.
A comprehensive suite of global cloud computing services to power your business. Summary: The clock cycle is the smallest unit, the machine cycle requires 1 or more clock cycles, the instruction cycle requires 1 or more machine cycles; the machine cycle refers to the time to complete a basic operation, which can sometimes include the bus read and write, and thus contains the bus cycle, But sometimes it may not be related to the bus read and write, so there is no explicit relationship between them.
In general, the machine cycle is the unit, single instruction execution cycle, double instruction execution cycle, etc. Machine Cycle: complete a basic operation of the time unit, such as the reference period, take the number of cycles. Clock cycle: The inverse of the operating frequency of the CPU's crystal oscillator. The operating frequency of the system determines the processing power of the arm microprocessor to a great extent.
ARM7 Series microprocessor typical processing speed is 0. Different chips on the clock processing different, some chips only need a master clock frequency, and some chip internal clock controller can be arm core and USB, UART, DSP, Audio and other features provide clocks of different frequencies. Connect and share knowledge within a single location that is structured and easy to search. There is a lot of ambiguity between the definition of these three terms. So, I wanted to know what is the intuition behind these terms and how all three are connected to each other.
Note that you'll really want to look at the simplest pipelined CPU architecture you can find to understand these concepts. Sign up to join this community. The best answers are voted up and rise to the top.
Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Asked 1 year ago. Active 1 year ago. Viewed 2k times. Chetan Naik Chetan Naik 13 3 3 bronze badges.
0コメント