18 Questions
What technique can help achieve lower power usage in battery-operated systems?
Voltage scaling
In an asymmetric multiprocessor system, what is done under near idle conditions to save power?
Power off the more powerful core
What type of memory is typically the most cost-effective but also the least flexible?
Internal memory
When selecting a microcontroller, what factor is typically considered alongside the required memory?
Cost
What technique can shut down clocks and power to unused modules in an SoC?
Power gating
Apart from the processor, what else is essential in every system design for input and output operations?
Peripherals
In non-privileged mode, what can be done with control fields?
Read only
Which of the following conditions can change due to an arithmetic operation?
Status flags
What is the expected mode for a user program running on an ARM for sophisticated applications?
User mode
Which part of an ARM-based system is typically expected to run in privileged mode?
Operating System (OS)
How many modes does ARM have, according to the text?
7 modes
Which of the following is classified as a privileged mode in ARM?
Abort
What is the primary goal of ARM in establishing standards in the industry?
To create industry standard embedded microprocessor architecture
How is the ARM architecture different from a single organization?
ARM architecture follows certain commonalities across different variants
What connects the ALU to the register bank in ARM organization?
Two buses A and B
What does the Barrel shifter do in ARM organization?
Preprocess the data from ALU
Which component in ARM architecture is capable of shifting, rotating, or preprocessing data before it reaches the ALU?
Barrel shifter
Why can all the operations in ARM architecture take place in one cycle?
Because they are all combinational circuits
Test your knowledge on control fields and condition flags in non-privileged mode. Learn about how these fields can be read but not changed, while condition flags can be altered due to arithmetic operations.
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