Altera Stratix GX Transceiver - Manual (Page 287)

Altera Corporation A–3
January 2005 Stratix GX Transceiver User Guide
Supported Codes
The 8B/10B scheme defines the 12 control codes listed in Table A–1 for
synchronization, alignment, and general application purposes.
Table A–2 shows the valid data code-groups.
Table A–1. Supported K Codes
K Code Octal Value
8-Bit Code
HGF_EDCBA
10-Bit Code RD-
abcdei_fghj
10-Bit Code RD+
abcdei_fghj
K28.0 1C 8'b000_11100 10'b001111_0100 10'b110000_1011
K28.1 3C 8'b001_11100 10'b001111_1001 10'b110000_0110
K28.2 5C 8'b010_11100 10'b001111_0101 10'b110000_1010
K28.3 7C 8'b011_11100 10'b001111_0011 10'b110000_1100
K28.4 9C 8'b100_11100 10'b001111_0010 10'b110000_1101
K28.5 (1) BC 8'b101_11100 10'b001111_1010 10'b110000_0101
K28.6 DC 8'b110_11100 10'b001111_0110 10'b110000_1001
K28.7 FC 8'b111_11100 10'b001111_1000 10'b110000_0111
K23.7 F7 8'b111_10111 10'b111010_1000 10'b000101_0111
K27.7 FB 8'b111_11011 10'b110110_1000 10'b001001_0111
K29.7 FD 8'b111_11101 10'b101110_1000 10'b010001_0111
K30.7 FE 8'b111_11110 10'b011110_1000 10'b100001_0111
Note to Table A–1 :
(1) K28.5 is a comma code used for word alignment and indicates an IDLE state.
Table A–2. Valid Data Code-Groups (Part 1 of 9)
Code-group Name Octet Value
Octet Bits
HGF EDCBA
Current RD- Current RD+
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
D7.0 07 000 00111 111000 1011 000111 0100
D8.0 08 000 01000 111001 0100 000110 1011