UM0438 datasheet(9/50 Pages) STMICROELECTRONICS

9 / 50 page

UM0438

Preface

9/50

In some contexts, such as signal encodings, an unitalicized x

indicates a don’t care.

An italicized x indicates an alphanumeric variable.

An italicized n indicates an numeric variable.

NOT logical operator

AND logical operator

OR logical operator

Terminology conventions

Table 1 lists certain terms used in this manual that differ from the architecture terminology

conventions.

Acronyms and abbreviations

Table 2 contains acronyms and abbreviations that are used in this document.

Table 1.

Terminology conventions

Architecture specification

This manual

Change bit

Changed bit

Extended mnemonics

Simplified mnemonics

Out of order memory accesses

Speculative memory accesses

Privileged mode (or privileged state)

Supervisor level

Problem mode (or problem state)

User level

Reference bit

Referenced bit

Relocation

Translation

Storage (locations)

Memory

Storage (the act of)

Access

Table 2.

Acronyms and abbreviated terms

Term

Meaning

Condition register

CTR

Count register

DCR

Data control register

DTLB

Data translation lookaside buffer

Effective address

ECC

Error checking and correction

FPR

Floating-point register

GPR

General-purpose register

IEEE

Institute of Electrical and Electronics Engineers

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