Embedded System - Quiz

In an embedded system, memory is a critical resource that needs to be protected. The memory management unit is responsible for protecting the memory by implementing different programming techniques such as address translation and access control. This unit ensures that only authorized processes can access specific areas of memory, thus protecting the system from unauthorized access and potential security breaches.

The switching of registers and the transfer of data between registers is typically performed using instruction opcodes in an embedded system. One example of an instruction that is commonly used for this purpose is the EXX instruction, which is used to switch between different sets of registers.

The SPARC architecture is based on the Reduced Instruction Set Computer (RISC) design, which uses a simple instruction set. In contrast, the MC68020, MC68030, and 8086 architectures use the Complex Instruction Set Computer (CISC) design, which has a more complex instruction set.

In von Neumann architecture, the program memory and data memory share a common bus. This is in contrast to Harvard architecture, where there are separate buses for program memory and data memory.

The time slice method of task swapping works by switching tasks at regular time intervals. The currently running task is allowed to execute for a certain period, after which the control is passed to the next task in the queue. This method is used in real-time operating systems to ensure that each task gets a fair share of the processor time.

MC68HC05 is an 8-bit microcontroller. It is a single-chip microcontroller with a small size and low power consumption.

The register set of 80286 that forms the same register set of 8086 processor are AH and AL. This is because the 16-bit register of 80286 can act as an 8-bit register by splitting into a higher and lower register.

The 80286 processor can access memory beyond 1MB by using a paging mechanism and special hardware to simulate the missing address lines. This technique is known as expanded memory, and it allows applications to utilize additional memory beyond the 1MB limit of real mode.

The MIPS R2000 processor uses RISC architecture, which enables the processor to execute its instructions in a single clock cycle. This architecture also allows complex operations to be synthesized from a reduced instruction set.

CAM stands for content-addressable memory, which is a type of non-von Neumann architecture that enables fast searching of large data sets by performing a parallel search on all of the memory locations in a single operation.