MOD5234-100IR NetBurner Inc, MOD5234-100IR Datasheet - Page 620

• 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

Symmetric Key Hardware Accelerator (SKHA)
30.2.1.2 SKHA Control Register (SKCR)
The SKCR contains bits that should be set after a hardware reset.
30-8
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 30-2. SKMR Field Descriptions
MCF5235 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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