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What is the wait state of a process?
A wait state is a situation in which a computer program or processor is waiting for the completion of some event before resuming activity. A program or process in a wait state is inactive for the duration of the wait state.
What is wait state generator?
The wait-state generator was created to insert one or two extra clock cycles in a 65C02 or 65C816 system. This could be used to interface slower memories or IO devices in a system with a fast system clock. Fast RAM will have 0 wait-states, slow ROM will have 1, and a slower IO device will have 2 wait-states.
Which signal is associated with wait state?
This signal is like wait state and is available at pin 23. When this signal is high, then the processor has to wait for IDLE state, else the execution continues….Pin diagram of 8086 microprocessor.
| QS0 | QS1 | Status |
|---|---|---|
| 0 | 0 | No operation |
| 0 | 1 | First byte of opcode from the queue |
| 1 | 0 | Empty the queue |
| 1 | 1 | Subsequent byte from the queue |
What are different states of process?
The different Process States NEW – The process is being created. READY – The process is waiting to be assigned to a processor. RUNNING – Instructions are being executed. WAITING – The process is waiting for some event to occur(such as an I/O completion or reception of a signal).
Which state is not a process state?
Discussion Forum
| Que. | Which of the following is not a process state? |
|---|---|
| b. | Running |
| c. | Blocked |
| d. | Execution |
| Answer:Blocked |
Why are there no wait states in flash memory?
Thanks to the ART accelerator and the 128-bit Flash memory, the number of wait states given here does not impact the execution speed from Flash memory since the ART accelerator allows to achieve a performance equivalent to 0 wait state program execution.
How many wait states does a flash read have?
ST takes a unique approach. First, each flash read is 128 bits wide – a single fetch brings in 16 bytes of memory. Given that instructions are 16 or 32 bits, the average read brings in around 6 instructions, all at the cost of one set of wait states (from the table above). Absent this approach, figure on around six times as many wait states.
What does it mean when a computer is in a wait state?
A wait state is a delay experienced by a computer processor when accessing external memory or another device that is slow to respond. Computer microprocessors generally run much faster than the computer’s other subsystems, which hold the data the CPU reads and writes. Even memory, the fastest of these,…
How are wait states added to memory access cycle?
Note that adding such delay will slow things down (the controller would have been happy to act on the data from memory sooner), but will not affect correctness of operation (unless things are slowed down so much that other timing obligations cannot be met). Wait states are added to the memory access cycle initiated by the CPU.