MCF5270CAB100 Freescale Semiconductor, MCF5270CAB100 Datasheet - Page 526

• Manufacturer Part Number: MCF5270CAB100
• Description: MCU V2 COLDFIRE 64K SRAM 160-QFP
• Manufacturer: Freescale Semiconductor
• Series: MCF527xr

Specifications of MCF5270CAB100

• Core Processor: Coldfire V2
• Core Size: 32-Bit
• Speed: 100MHz
• Connectivity: EBI/EMI, Ethernet, I²C, SPI, UART/USART
• Peripherals: DMA, WDT
• Number Of I /o: 39
• Program Memory Type: ROMless
• Ram Size: 64K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 160-QFP
• Processor Series: MCF527x
• Core: ColdFire V2
• 3rd Party Development Tools: JLINK-CF-BDM26, EWCF
• Development Tools By Supplier: NNDK-MOD5272-KIT, NNDK-MOD5270-KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

Symmetric Key Hardware Accelerator (SKHA)
28.2.1.2 SKHA Control Register (SKCR)
The SKCR contains bits that should be set after a hardware reset.
28-8
31–12
11–8
Bits
6–5
4–3
1–0
7
2
CTRM
Name
DKP
ALG
DIR
CM
—
—
Reserved, should be cleared.
Counter mode modulus. Specifies modulus size for counter mode. In counter mode, the
initial counter value will be incremented modulo 2
Disable key parity check. Disables checking DES parity
0 Check for DES key parity errors
1 Do not check for DES key parity errors
Note: A mode error will be generated if this bit is set to one while in AES mode.
Reserved, should be cleared.
Cipher mode. Selects the cipher mode.
00 ECB
01 CBC
10 Reserved
11 CTR
Direction. Selects encryption or decryption
0 Decrypt
1 Encrypt
Algorithm. Selects which algorithm the SKHA module uses
00 AES
01 DES
10 3DES
11 Reserved
Table 28-2. SKMR Field Descriptions
MCF5271 Reference Manual, Rev. 2
Note: If CTRM is set to reserved settings
for DES or 3DES, a mode error will occur.
CTRM
0000
0001
0110
1000
1001
0111
1110
1111
...
...
Description
DES or 3DES
Reserved
Reserved
Reserved
Reserved
CTR Modulus
2
2
2
2
...
...
16
56
64
N
8
.
1
1
1
1
AES
2
2
2
2
2
2
2
2
...
...
120
128
16
56
64
72
80
8
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