CL-PS7500FE 查看數據表（PDF） - Cirrus Logic
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CL-PS7500FE Datasheet PDF : 251 Pages
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CL-PS7500FE
System-on-a-Chip for Internet Appliance
VIRTUAL ADDRESS
31
20 19
12 11
TABLE INDEX
L2 TABLE INDEX
PAGE INDEX
8
12
TRANSLATION TABLE BASE
31
14 13
TRANSLATION BASE
0
12
0
18
31
TRANSLATION BASE
14 13
TABLE INDEX
21 0
00
31
FIRST LEVEL DESCRIPTOR 10 9 8
54 21 0
PAGE TABLE BASE ADDRESS
DOMAIN
01
31
PAGE TABLE BASE ADDRESS
10 9
21 0
L2 TABLE INDEX
00
31
PAGE BASE ADDRESS
SECOND LEVEL DESCRIPTOR
12 11 10 9 8 7 6 5 4 3 2 1 0
AP3 AP2 AP1 AP0 C B 1 0
PHYSICAL ADDRESS
31
12 11
0
PAGE BASE ADDRESS
PAGE INDEX
Figure 6-7. Small Page Translation
6.6 Translating Large Page References
Figure 6-8 illustrates the complete translation sequence for a 64-Kbyte large page. Note that since the
upper 4 bits of the Page Index and low-order 4 bits of the Page Table index overlap, each Page Table entry
for a large page must be duplicated 16 times (in consecutive memory locations) in the Page Table.
June 1997
ADVANCE DATA BOOK v2.0
45
ARM PROCESSOR MMU
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