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TABLE OF CONTENTS (Continued)
Paragraph
Number
Page
Number
Title
x
MPC801
USER’S MANUAL
MOTOROLA
9.5
9.6
9.7
9.8
9.9
9.9.1
Restrictions ........................................................................................9-11
Instruction Cache Coherency .............................................................9-11
Updating Code And Memory Region Attributes .................................9-11
Reset Sequence .................................................................................9-12
Debug Support ...................................................................................9-12
Fetching Instructions From the Development Port ...................9-12
Section 10
Data Cache
10.1
10.2
10.3
10.3.1
10.3.1.1
10.3.1.2
10.3.1.3
10.3.2
10.3.3
10.3.3.1
10.3.3.2
10.3.3.3
10.3.3.4
10.4
10.4.1
10.4.2
10.4.2.1
10.4.2.2
10.4.3
10.4.4
10.4.5
10.5
10.5.1
10.5.2
10.5.3
10.5.4
10.5.4.1
10.5.4.2
10.5.4.3
10.5.5
Features .............................................................................................10-1
Organization of the Data Cache .........................................................10-2
Programming the Data Cache ............................................................10-3
PowerPC Architecture Instructions ..........................................10-3
PowerPC User Instruction Set Architecture ..................10-3
PowerPC Virtual Environment Architecture ..................10-3
PowerPC Operating Environment Architecture ............10-3
Implementation Specific Operations ........................................10-3
Special Registers of the Data Cache .......................................10-3
Data Cache Control and Status Register .....................10-4
Data Cache Address Register ......................................10-6
Reading the Cache Structures .....................................10-6
Data Cache Data Register ............................................10-7
Operating the Data Cache .................................................................10-7
Data Cache Read .....................................................................10-7
Data Cache Write .....................................................................10-8
Copyback Mode ............................................................10-8
Writethrough Mode .......................................................10-9
Data Cache-Inhibited Accesses ...............................................10-9
Data Cache Freeze ..................................................................10-9
Data Cache Coherency ..........................................................10-10
Controlling the Data Cache ..............................................................10-10
Flushing and Invalidating .......................................................10-10
Disabling ................................................................................10-10
Locking ...................................................................................10-10
Storage Control Instructions in the Data Cache .....................10-11
dcbi, dcbst, dcbf And dcbz Instructions ......................10-11
Touch ..........................................................................10-11
Storage Synchronization and Reservation .................10-11
Reading the Data Cache Structures ......................................10-11