ALXD800EEXJ2VD AMD (ADVANCED MICRO DEVICES), ALXD800EEXJ2VD Datasheet - Page 522
ALXD800EEXJ2VD
Manufacturer Part Number
ALXD800EEXJ2VD
Description
Manufacturer
AMD (ADVANCED MICRO DEVICES)
Datasheet
1.ALXD800EEXJ2VD.pdf
(675 pages)
Specifications of ALXD800EEXJ2VD
Operating Temperature (min)
0C
Operating Temperature (max)
85C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Lead Free Status / RoHS Status
Compliant
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6.12.3.10 SB Writable Key 0 (SB_WKEY_0
SB Memory Offset 030h
Type
Reset Value
6.12.3.11 SB Writable Key 1 (SB_WKEY_1)
SB Memory Offset 034h
Type
Reset Value
522
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
31:4
31:0
31:0
Bit
3:0
Bit
Bit
WKEY_ 0
WKEY_1
Name
LENGTH_B
RSVD
Name
Name
WO
00000000h
WO
00000000h
33234C
Description
Writable Key 0. Bits [31:0] of the Writable Key for the Security block. This register
should not be changed during an AES encryption or decryption operation. To prevent
one process from reading the key written by another process, this register is not read-
able.
Description
Writable Key 1. Bits [63:32] of the Writable Key for the Security block. This register
should not be changed during an AES encryption or decryption operation. To prevent
one process from reading the key written by another process, this register is not read-
able.
Description
Length B. The Length field is a 32-bit value that describes the number of bytes to be
encrypted or decrypted in the next operation using pointer set B. The lower four bits
must be written as zero and always read zero. This forces the data length to be an inte-
ger number of 16-byte blocks. This register should not be changed during an AES
encryption or decryption operation using the A pointer set (i.e., while STA is asserted,
SB Memory Offset 000h[0] = 1). This register can be modified during an operation using
the B pointer set (while STB is asserted, SB Memory Offset 004h[0] = 1).
Reserved. Set to 0.
SB_LENGTH_B Register Bit Descriptions
SB_WKEY_1 Bit Descriptions
SB_WKEY_0
SB_WKEY_1 Register Map
SB_W_KEY0
WKEY_1[63:32]
W_EY_0[31:0]
Bit Descriptions
Register Map
AMD Geode™ LX Processors Data Book
9
9
Security Block Register Descriptions
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
0
0
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