MIPS R10000 Microprocessor User's Manual - SGI TechPubs Library

Table of Contents xiii
5
Secondary Cache Interface
Tag and Data Arrays......................................................................................................................60
Secondary Cache Interface Frequencies......................................................................................61
Secondary Cache Indexing............................................................................................................62
Indexing the Data Array .....................................................................................................62
Indexing the Tag Array .......................................................................................................63
Secondary Cache Way Prediction Table .....................................................................................64
Secondary Cache Tag.....................................................................................................................66
SCTag(25:4), Physical Tag...................................................................................................66
SCTag(3:2), PIdx ...................................................................................................................67
SCTag(1:0), Cache Block State ............................................................................................67
Read Sequences ..............................................................................................................................68
4-Word Read Sequence .......................................................................................................69
8-Word Read Sequence .......................................................................................................70
16 or 32-Word Read Sequence............................................................................................71
Tag Read Sequence ..............................................................................................................72
Write Sequences .............................................................................................................................73
4-Word Write Sequence.......................................................................................................74
8-Word Write Sequence.......................................................................................................75
16 or 32-Word Write Sequence...........................................................................................76
Tag Write Sequence .............................................................................................................77
MIPS R10000 Microprocessor User's Manual Version 2.0 of January 29, 1997