P. 22-13 – Freescale Semiconductor MCF5480 User Manual
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MCF548x Reference Manual, Rev. 3
Freescale Semiconductor
22-13
22.6.4.2
EU Assignment Status Registers (EUASRH and EUASRL)
and
, are used to check the assignment status
(static or dynamic) of an EU to a particular crypto-channel. When an EU is already assigned, it is
inaccessible to any other crypto-channel.
A four-bit field indicates the channel to which an EU is assigned, whether statically or dynamically.
0x3–0xE
Reserved
0xF
EU is not statically assigned to any channel and is not
allowed to be dynamically assigned to a channel.
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Field
—
RNG
—
—
Reset
1111
0000
1111
0000
R/W
R
R/W
R
R
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Field
—
MDEU
—
AFEU
Reset
1111
0000
1111
0000
R/W
R
R/W
R
R/W
Reg
Addr
MBAR + 0x21028
Figure 22-9. EU Assignment Status Register High (EUASRH)
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Field
—
DESU
—
AESU
Reset
1111
0000
1111
0000
R/W
R
R/W
R
R/W
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Field
—
—
—
Reset
1111
1111
0000
R/W
R
R
R
Reg
Addr
MBAR + 0x2102C
Figure 22-10. EU Assignment Status Register Low (EUASRL)
Table 22-5. Channel Assignment Value (Continued)
Value
Channel