
Symmetric Key Hardware Accelerator (SKHA)
Freescale Semiconductor
35-7
35.2.2
SKHA Control Register (SKCR)
The SKCR contains bits that should be set after a hardware reset.
Table 35-2. SKMR Field Descriptions
Field
Description
31–13
Reserved, should be cleared.
12–9
CTRM
Counter mode modulus. Specifies modulus size for counter mode. In counter mode, the initial counter value is
incremented modulo 2
N
.
8
DKP
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 is generated if this bit is set to one while in AES mode.
7–5
Reserved, should be cleared.
4–3
CM
Cipher mode. Selects the cipher mode.
00 ECB
01 CBC
10 Reserved
11 CTR
2
DIR
Direction. Selects encryption or decryption.
0 Decrypt
1 Encrypt
1–0
ALG
Algorithm. Selects which algorithm the SKHA module uses.
00 AES
01 DES
10 3DES
11 Reserved
CTRM
CTR Modulus
DES or 3DES
AES
0000
2
8
2
8
0001
2
16
2
16
...
...
...
0110
2
56
2
56
0111
2
64
2
64
1000
Reserved
2
72
1001
Reserved
2
80
...
...
...
1110
Reserved
2
120
1111
Reserved
2
128
1
If CTRM is set to reserved settings for DES or
3DES, a mode error occurs.
MCF5329 Reference Manual, Rev 3
Содержание MCF5329
Страница 106: ...ColdFire Core 3 32 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 126: ...Enhanced Multiply Accumulate Unit EMAC 4 20 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 148: ...Cache 5 22 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 154: ...Static RAM SRAM 6 6 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 184: ...Power Management 8 18 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 204: ...Reset Controller Module 10 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 220: ...System Control Module SCM 11 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 228: ...Crossbar Switch XBS 12 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 268: ...General Purpose I O Module 13 40 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 392: ...SDRAM Controller SDRAMC 18 30 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 436: ...Fast Ethernet Controller FEC 19 44 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 564: ...Liquid Crystal Display Controller LCDC 22 44 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 594: ...FlexCAN 23 30 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 678: ...Pulse Width Modulation PWM Module 26 22 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 684: ...Watchdog Timer Module 27 6 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 692: ...Programmable Interrupt Timers PIT0 PIT3 28 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 704: ...DMA Timers DTIM0 DTIM3 29 12 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 720: ...Queued Serial Peripheral Interface QSPI 30 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 754: ...UART Modules 31 34 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 770: ...I2 C Interface 32 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 790: ...Message Digest Hardware Accelerator MDHA 33 20 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 866: ...Debug Module 36 50 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 902: ...Register Memory Map Quick Reference A 26 Freescale Semiconductor MCF5329 Reference Manual Rev 3...