MCF5270CAB100 Freescale Semiconductor, MCF5270CAB100 Datasheet - Page 537

• 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

28.3.5 Security Assurance Features
The SKHA features simple security assurance features to prevent operation in the presence of
hardware faults and to shield visibility to sensitive data. Further, any user error or internal
hardware fault will cause the internal state machines to enter an idle/error state. In this case, the
SKHA must be reset to resume operation, SKCMR[SWR]. Readable registers may be accessed to
determine the nature of the error.
28.4
28.4.1 General Operation
The intended general operation of the SKHA is as follows for ECB, CBC and CTR modes:
Freescale Semiconductor
1. Reset/initialize.
2. Set algorithm, processing direction, and cipher mode in the SKMR.
3. Write initialization vector/counter to the SKCRn registers, if necessary.
4. Write symmetric key to SKKDRn registers.
5. Set number of bytes in key in the SKKSR.
6. Set the number of bits in the message in the SKDSR.
7. Load the input FIFO with message data.
8. Set the SKCMR[GO] bit.
Initialization/Application Information
Figure 28-17. SKHA Core Block Diagram
Engine
AES
MCF5271 Reference Manual, Rev. 2
128
Input
Mode Control
Key Data
Logic
Output
Engine
DES
64 or 192
Initialization/Application Information
28-19