Freescale Semiconductor MCF5480 - Manual (Page 615)

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MCF548x Reference Manual, Rev. 3
Freescale Semiconductor 22-13
22.6.4.2 EU Assignment Status Registers (EUASRH and EUASRL)
The EUASR registers, shown in Figure 22-9 and Figure 22-10 , 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