8b/10b code groups, 8b/10b code groups” on – Altera SerialLite II Protocol User Manual
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Altera Corporation
75
SerialLite II Protocol Reference Manual
SerialLite II Specification
8b/10b Code
Groups
shows the 8b/10b special code groups as defined by Clause 36
of the IEEE 802.3-2002 specification. The SerialLite II protocol uses these
special codes for control purposes.
shows the 8b/10b valid data code groups.
Table 2–27. Valid Special Code Groups
Code Group
Name
Octet Value
Octet Bits HGF
EDCBA
Current RD -
Current RD +
Notes
abcdei fghj
abcdei fghj
K28.0
1C
000 11100
001111 0100
110000 1011
IDL
K28.1
3C
001 11100
001111 1001
110000 0110
SPP
K28.2
5C
010 11100
001111 0101
110000 1010
SDP
K28.3
7C
011 11100
001111 0011
110000 1100
ALN
K28.4
9C
100 11100
001111 0010
110000 1101
CPP
K28.5
BC
101 11100
001111 1010
110000 0101
COM
K28.6
DC
110 11100
001111 0110
110000 1001
CDP
K28.7
FC
111 11100
001111 1000
110000 0111
Reserved
K23.7
F7
111 10111
111010 1000
000101 0111
SLP
K27.7
FB
111 11011
110110 1000
001001 0111
SUP
K29.7
FD
111 11101
101110 1000
010001 0111
EGP
K30.7
FE
111 11110
011110 1000
100001 0111
EBP
Note to
(1)
K28.7 is not to be used because it could cause a comma to appear across the boundary when it is combined with
the following code groups: /K28.x/, /D3.x/, /D11.x/, /D12.x/, /D19.x/, /D20.x/, or /D28.x/, where x is a value
in the range 0 to 7, inclusive.
Table 2–28. Valid Data Code Groups (Part 1 of 9)
Code Group
Name
Octet Value
Octet Bits HGF
EDCBA
Current RD -
Current RD +
Notes
abcdei fghj
abcdei fghj
D0.0
00
000 00000
100111 0100
011000 1011
D1.0
01
000 00001
011101 0100
100010 1011
D2.0
02
000 00010
101101 0100
010010 1011
D3.0
03
000 00011
110001 1011
110001 0100
D4.0
04
000 00100
110101 0100
001010 1011
D5.0
05
000 00101
101001 1011
101001 0100
D6.0
06
000 00110
011001 1011
011001 0100