MCF5270CAB100 Freescale Semiconductor, MCF5270CAB100 Datasheet - Page 522

• 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)
28.1.2.4 Cipher Block Chaining (CBC) Cipher Mode
Cipher Block Chaining mode encrypts the output of the previous block with the current block input
as shown in
block as shown in
to processing a message. The context registers are updated internally and must be read and restored
during a context switch.
28-4
Figure
Figure
28-5. For decryption, the previous ciphertext block is mixed with the decrypted
Encrypt(k)
Decrypt(k)
Cipher 1
IV
Plain 1
Plain 1
28-6. A 128-bit random initialization vector (IV) must be loaded prior
Encrypt(k)
Figure 28-4. ECB Mode Processing
Cipher 1
Plain 1
Figure 28-5. CBC Encryption
MCF5271 Reference Manual, Rev. 2
Decrypt(k)
Encrypt(k)
Cipher 2
Plain 2
Plain 2
Encrypt(k)
Cipher 2
Plain 2
Decrypt(k)
Encrypt(k)
Cipher 3
Plain 3
Plain 3
...
...
...
Encrypt(k)
Cipher N
Plain N
Encrypt(k)
Decrypt(k)
Cipher N
Plain N
Plain N
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