MPC8280 datasheet(172/1386 Pages) FREESCALE

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MPC8280 PowerQUICC II Family Reference Manual, Rev. 1

II-2

Freescale Semiconductor

example, MSR[LE] refers to the little-endian mode enable bit in the machine state

In certain contexts, such as in a signal encoding or a bit field, indicates a don’t

care.

Indicates an undefined numerical value

Acronyms and Abbreviations

Table II-1 contains acronyms and abbreviations that are used in this document. Note that the meanings for

some acronyms (such as SDR1 and DSISR) are historical, and the words for which an acronym stands may

not be intuitively obvious.

Table II-1. Acronyms and Abbreviated Terms

Term

Meaning

BIST

Built-in self test

DMA

Direct memory access

DRAM

Dynamic random access memory

Effective address

GPR

General-purpose register

IEEE

Institute of Electrical and Electronics Engineers

LSB

Least-significant byte

lsb

Least-significant bit

LSU

Load/store unit

MSB

Most-significant byte

msb

Most-significant bit

MSR

Machine state register

PCI

Peripheral component interconnect

RTOS

Real-time operating system

Receive

SPR

Special-purpose register

SWT

Software watchdog timer

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