MOD5234-100IR NetBurner Inc, MOD5234-100IR Datasheet - Page 631

• Manufacturer Part Number: MOD5234-100IR
• Description: MOD5234 10/100 ETHERNET MODULE
• Manufacturer: NetBurner Inc
• Type: Controllers & Processorsr

Specifications of MOD5234-100IR

• Interface: I²C, SPI, UART
• Voltage - Supply: 2.5V
• Mounting Type: Surface Mount
• Package / Case: Module
• Product: Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Format: -
• Baud Rates: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: Q4483564

30.3.5 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.
30.4
30.4.1 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 30-17. SKHA Core Block Diagram
Engine
AES
MCF5235 Reference Manual, Rev. 2
128
Input
Mode Control
Key Data
Logic
Output
Engine
DES
64 or 192
Initialization/Application Information
30-19