ARM ARM926EJ-S - Figure 4-3 ARM926 EJ-S Cache Set;Way;Word Format

Caches and Write Buffer
ARM DDI0198D Copyright © 2001-2003 ARM Limited. All rights reserved. 4-11
• the ARM926EJ-S caches are four-way Associative
• the range of tags addressed by the Index define a Way
• the number of tags in a Way is the number of Sets, NSETS.
The Set/Way/Word format for ARM926EJ-S caches is shown in Figure 4-3.
Figure 4-3 ARM926EJ-S cache Set/Way/Word format
In Figure 4-3:
A = log
2
Associativity.
For example, for a four-way cache A = 2.
S = log
2
NSETS.
Way SBZ
Set select
(= Index)
Word SBZ
31
32-A
31-A S+5 S+4 5 4 2 1 0