Datasheet

Glossary of Terms and Abbreviations Glossary-15
System memory. The physical memory available to a processor.
Tenure. A tenure consists of three phases: arbitration, transfer, termination.
There can be separate address bus tenures and data bus tenures.
Throughput. The measure of the number of instructions that are processed
per clock cycle.
Transfer termination. The successful or unsuccessful conclusion of a data
transfer.
Underflow. A condition that occurs during arithmetic operations when the
result cannot be represented accurately in the destination register.
User mode. The operating state of a processor used typically by application
software. In user mode, software can access only certain control
registers and can access only user memory space. No privileged
operations can be performed.
Word. A 16-bit data element.
Write-through. A cache memory update policy in which all processor write
cycles are written to both the cache and memory.
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Freescale Semiconductor, Inc.
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