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ARM920T PROCESSOR MMU
3-5
Translation
table
4096 entries
TTB base
Indexed by
modified
virtual
address
bits [31:20]
1MB
Section base
Indexed by
modified
virtual
address
bits [19:0]
Coarse page
table
256 entries
Coarse page
table base
Indexed by
modified
virtual
address
bits [19:12]
Fine page
table
1024 entries
Tiny page
table base
Indexed by
modified
virtual
address
bits [19:10]
Large page
64KB
Large page
base
Indexed by
modified
virtual
address
bits [15:0]
Small page
4KB
Small page
base
Indexed by
modified
virtual
address
bits [11:0]
Tiny page
1KB
Tiny page
base
Indexed by
modified
virtual
address
bits [9:0]
Level one fetch
Section
Level two fetch
Figure 3-1. Translating Page Tables