0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
Is the CPU updating cycle another name for the CPU processing cycle?
true
What is a CPU cycle?
The sequence of steps that a CPU performs.Also known as fetch-decode-execute cycle.
What is CPU cycle time?
The CPU cycle time is the time between start up and shutdown
Which property is illustrated by the following statement if zxy fde and fde cab then zxy cab?
transitive property
Is the machine cycle same as the CPU?
yes
How does DMA module communicate with CPU?
DMA can communicate with CPU using Cycle stelaing process
What is a CPU registers?
¨Its provides internal storage within the CPU ¨It is a fastest type of storage ¨Its provides internal storage within the CPU ¨It is a fastest type of storage
How many steps does CPU processing cycle have?
4
How many steps does the CPU processing cycle have?
4
What measure of A will make ABC similar to FDE?
63
What is bus cycle in a microprocessor?
Bus cycle is a single transaction between the main memory and the CPU.
3 types of DMA transfer modes?
· Block transfer DMA controller takes the bus control by CPU. CPU has no access to bus until the transfer is complete. During this time CPU can perform internal operations that do not need bus. This is a common and popular method with modern microprocessors. · Cycle stealing This is a word-by-word transfer based on CPU cycle stealing. When DMA steals a cycle, CPU is stopped completely for one cycle. Cycle stealing is not an interrupt. CPU pauses for just one machine cycle. This type of transfer takes a period of time. Some major steps of DMA cycle stealing in order to transfer data to and form memory are: · DMA needs control of the CPU · DMA must use the bus only when the CPU does not need it · CPU is suspended by DMA just before it needs to use the bus · CPU pauses for one bus cycle · DMA transfers one words and then returns the control to CPU · The overall effect is to cause the CPU to execute more slowly · Interleaved DMA. It is similar to block transfer technique, here DMA controller takes the control of system bus only when CPU is not using it. For example, performing an ALU operation or incrementing a counter. The data transfer by this kind of method takes a period of time.
