AES Engine: Difference between revisions

Newer edit →

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 == Registers ==
 {| class="wikitable" border="1"
-|-
 !  NAME
 !  ADDRESS
@@ Line 48: / Line 47: @@
-(:tableend:)
+|}
 == REG_AESCNT ==
-(:table border=1 cellspacing=0 cellpadding=3  bgcolor=#F0F0F0  :)
+{| class="wikitable" border="1"
-(:cellnr  bgcolor=#E0E0E0 :)'''BIT'''
+!  BIT
-(:cell  bgcolor=#E0E0E0 :)'''DESCRIPTION'''
+!  DESCRIPTION
-(:cellnr:)4-0
+|-
-(:cell:)Write fifo count
+|  4-0
-(:cellnr:)9-5
+|  Write fifo count
-(:cell:)Read fifo count
+|-
-(:cellnr:)10
+|  9-5
-(:cell:)Flush write fifo
+|  Read fifo count
-(:cellnr:)11
+|-
-(:cell:)Flush read fifo
+|  10
-(:cellnr:)15-12
+|  Flush write fifo
-(:cell:)?
+|-
-(:cellnr:)18-16
+|  11
-(:cell:)MAC size (size in bytes = s*2+2, e.g, 7 == 16 bytes)
+|  Flush read fifo
-(:cellnr:)19
+|-
-(:cell:)?
+|  15-12
-(:cellnr:)20
+|  ?
-(:cell:)MAC input control (0 = read MAC from FIFO, 1 = read MAC from REG_AESMAC)
+|-
-(:cellnr:)21
+|  18-16
-(:cell:)MAC status (0 = invalid, 1 = verified)
+|  MAC size (size in bytes = s*2+2, e.g, 7 == 16 bytes)
-(:cellnr:)23-22
+|-
-(:cell:)?
+|  19
-(:cellnr:)24
+|  ?
-(:cell:)Key select
+|-
-(:cellnr:)25
+|  20
-(:cell:)Key schedule busy
+|  MAC input control (0 = read MAC from FIFO, 1 = read MAC from REG_AESMAC)
-(:cellnr:)27-26
+|-
-(:cell:)Key slot (0..3)
+|  21
-(:cellnr:)29-28
+|  MAC status (0 = invalid, 1 = verified)
-(:cell:)Mode (0=AES CCM decrypt, 1=AES CCM encrypt, 2=AES CTR)
+|-
-(:cellnr:)30
+|  23-22
-(:cell:)Interrupt enable
+|  ?
-(:cellnr:)31
+|-
-(:cell:)Enable
+|  24
-(:tableend:)
+|  Key select
+|-
+|  25
+|  Key schedule busy
+|-
+|  27-26
+|  Key slot (0..3)
+|-
+|  29-28
+|  Mode (0=AES CCM decrypt, 1=AES CCM encrypt, 2=AES CTR)
+|-
+|  30
+|  Interrupt enable
+|-
+|  31
+|  Enable
+|}
 == REG_AESBLKCNT ==
-(:table border=1 cellspacing=0 cellpadding=3  bgcolor=#F0F0F0  :)
+{| class="wikitable" border="1"
-(:cellnr  bgcolor=#E0E0E0 :)'''BIT'''
+!  BIT
-(:cell  bgcolor=#E0E0E0 :)'''DESCRIPTION'''
+!  DESCRIPTION
-(:cellnr:)15-0
+|-
-(:cell:)CBC-MAC associated data blocks to process (1 block = 4 words)
+|  15-0
-(:cellnr:)31-16
+|  CBC-MAC associated data blocks to process (1 block = 4 words)
-(:cell:)CTR or payload data blocks to process (1 block = 4 words)
+|-
-(:tableend:)
+|  31-16
+|  CTR or payload data blocks to process (1 block = 4 words)
+|}
 == REG_AESKEY0/1/2/3 ==
-(:table border=1 cellspacing=0 cellpadding=3  bgcolor=#F0F0F0  :)
+{| class="wikitable" border="1"
-(:cellnr  bgcolor=#E0E0E0 :)'''BYTE'''
+!  BYTE
-(:cell  bgcolor=#E0E0E0 :)'''DESCRIPTION'''
+!  DESCRIPTION
-(:cellnr:)0-15
+|-
-(:cell:)Key data
+|  0-15
-(:cellnr:)16-31
+|  Key data
-(:cell:)Special key data X
+|-
-(:cellnr:)32-47
+|  16-31
-(:cell:)Special key data Y
+|  Special key data X
-(:tableend:)
+|-
+|  32-47
+|  Special key data Y
+|}