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11: Test Support
Table 11-6 Register c2, c3, c5, c6, c8, c10, and c15 operations (continued)
Function
RAM1 write
RAM2 read to C15.M
RAM2 write
CAM match, RAM1 read to C15.M
Read C15.M
Figure 11-12 shows the format of Rd for CAM writes and data for CAM reads.
31
Figure 11-12 Rd format, CAM write and data format, CAM read
In Figure 11-12 on page 11-10, V is the Valid bit, P is the Preserve bit, and SIZE_C sets the
memory region size. The allowed values of SIZE_C are shown in Table 11-7.
Figure 11-13 shows the format of Rd for RAM1 writes.
31
11-10
Rd
Protection
SBZ
PA Tag, Size
MVA
Data
MVA TAG
Table 11-7 CAM memory region size
SIZE_C[3:0]
b1111
b0111
b0011
b0001
b0000
22 21
SBZ
D15
Figure 11-13 Rd format, RAM1 write
Instruction(s)
MCR p15, 4, <Rd>, c15, c11, 0
MCR p15, 4, <Rd>, c15, c3, 5
MCR p15, 4, <Rd>, c15, c3, 1
MCR p15, 4, <Rd>, c15, c13, 4
MRC p15, 4, <Rd>, c15, c3, 0
10 9
SIZE_C
Memory region size
1MB
64KB
16KB
4KB
1KB
DOMAIN (one hot encoding)
EPSON
6 5 4
3
2
1
0
V P
SBZ
6 5 4
3
0
AP
D0
nC
nB
ARM720T CORE CPU MANUAL
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