Motorola MPC8260 - Manual (Page 136)

Part II-ii MPC8260 PowerQUICC II UserÕs Manual MOTOROLA
Part II. Configuration and Reset
Conventions
This chapter uses the following notational conventions:
Bold entries in Þgures and tables showing registers and parameter
RAM should be initialized by the user.
mnemonics Instruction mnemonics are shown in lowercase bold.
italics Italics indicate variable command parameters, for example, bcctrx.
Book titles in text are set in italics.
0x0 PreÞx to denote hexadecimal number
0b0 PreÞx to denote binary number
rA, rB Instruction syntax used to identify a source GPR
rD Instruction syntax used to identify a destination GPR
REG[FIELD] Abbreviations or acronyms for registers or buffer descriptors are
shown in uppercase text. SpeciÞc bits, Þelds, or numerical ranges
appear in brackets. For example, MSR[LE] refers to the little-endian
mode enable bit in the machine state register.
x In certain contexts, such as in a signal encoding or a bit Þeld,
indicates a donÕt care.
n Indicates an undeÞned numerical value
Acronyms and Abbreviations
Table i 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 v. Acronyms and Abbreviated Terms
Term Meaning
BIST Built-in self test
DMA Direct memory access
DRAM Dynamic random access memory
EA Effective address
GPR General-purpose register
IEEE Institute of Electrical and Electronics Engineers
LSB Least-signiÞcant byte
lsb Least-signiÞcant bit
LSU Load/store unit
MSB Most-signiÞcant byte
Bold