MPC8536E-ANDROID Freescale Semiconductor, MPC8536E-ANDROID Datasheet - Page 504
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MPC8536E-ANDROID
Manufacturer Part Number
MPC8536E-ANDROID
Description
HARDWARE/SOFTWARE ANDROID OS
Manufacturer
Freescale Semiconductor
Series
PowerQUICC ™r
Type
MPUr
Datasheets
1.MPC8536EBVTAVLA.pdf
(127 pages)
2.MPC8536EBVTAVLA.pdf
(2 pages)
3.MPC8536EBVTAVLA.pdf
(1706 pages)
Specifications of MPC8536E-ANDROID
Contents
Board
For Use With/related Products
MPC8536
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- Current page: 504 of 1706
- Download datasheet (15Mb)
Security Engine (SEC) 3.0
In CMAC cipher mode the received MAC is placed in context registers 3–4, and the computed MAC is put
in registers 1–2 if AUX0=1. Context registers 5-6 are used to provide E(K, {0}
and K2 can be computed after context switch without a time penalty. The computed value of E(K, {0}
is always stored in context registers 5-6 to be available for saving context in case of context switching.
Operation of the AESU in CMAC cipher mode requires the following steps (note these steps are performed
automatically in channel-driven access):
10.7.1.11.3 Context for Confidentiality and Data Integrity Cipher Modes
The context registers for the different cipher modes which provide both confidentiality and data integrity
are summarized in
10-74
10. Read MAC from context registers 1-2
11. For CMAC with ICV, check ICCR bits in the status register
.
1. Reset
2. Program the AESU mode register as follows:
3. Load key
4. Load context
5. Set key size
6. Set ICV size for computed/received MAC (8, 10, 12, 14 or 16 bytes, default is 16)—ignored if
7. Set data size
8. While available:
9. Write to the end of message register
a.
b.
c.
d.
AUX0 = 1
a.
Table 10-31. AESU Context Registers for Modes Providing Confidentiality and Integrity
Set cipher mode to CMAC (encode/decode bit is ignored)
Set AUX0 = 1 if processing of the message is going to be interrupted and later continued after
a context switch. Set AUX0 = 0 if this is the last (or only) part of the message so that the final
MAC can be generated.
Set AUX1 = 1 for keys K1 and K2 to be derived from E(K, {0}
registers 5–6. Otherwise, set AUX1=0, and CMAC computes E(K, {0}
Set AUX2 = 1 if using CMAC with ICV.
Load data blocks
Table
MPC8536E PowerQUICC III Integrated Processor Reference Manual, Rev. 1
Context Register #
(byte address)
1 (0x34100)
2 (0x34108)
10-31. The registers are described in more detail in the following subsections.
Cipher Mode providing Confidentiality and Integrity
IV* / MAC
CCM
Computed MAC
128
) that is loaded into context
GCM
128
) if AUX1=1, so that K1
128
Freescale Semiconductor
).
128
)
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