ARM ARM926EJ-S Technical Reference Manual page 244

Glossary
Cache terminology diagram
Glossary-20
The diagram below illustrates the following cache terminology:
• block address
• cache line
• cache set
• cache way
• index
• tag.
Block address
Tag Index
Line number
Tag
Tag
Cache tag RAM
=
Hit
(way number)
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Word Byte
Cache way Cache set
0
1
2
Tag 3
Tag
4
5 m
6
7
3
n 2
1
0
(way that corresponds)
Word number Cache line
2
1 0
Cache data RAM
Read data
ARM DDI0198D