4.2.3 Processor Input/Output (I/O). Input/output components of a processor are responsible for moving information to and from the processor's other components to any memory and I/O outside of the processor, on the board.
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(number of actual data bits per frame/total number of bits per frame) * the baud rate.
for a subsystem that contains an I/O controller to manage the I/O device, the interface between an I/O Controller and master CPU (via a communications interface) is based on four requirements:
CPI = Σ(CPI per instruction * instruction frequency)
- Instruction complexity and functionality aren't taken into consideration in the MIPS formula, so MIPS cannot compare the capabilities of processors with different ISAs.
- MIPS can vary on the same processor when running different programs (with varying instruction count and different types of instructions).