AC208-DS04-405-R datasheet(45/58 Pages) BOARDCOM

45 / 58 page

Preliminary Data Sheet

AC208

07/08/02

B roa dcom

Document

AC208-DS04-405-R

EEPROM Table

Page 37

4B/5B CODE-GROUP TABLE

Table 41: 4B/5B Code-Group Table

PCS Code Group[4:0] Symbol Name

MII (TXD/RXD [3:0])

Description

11110

0000

Data 0

01001

0001

Data 1

10100

0010

Data 2

10101

0011

Data 3

01010

0100

Data 4

01011

0101

Data 5

01110

0110

Data 6

01111

0111

Data 7

10010

1000

Data 8

10011

1001

Data 9

10110

1010

Data A

10111

1011

Data B

11010

1100

Data C

11011

1101

Data D

11100

1110

Data E

11101

1111

Data F

Idle and Control Code

11111

0000

Inter-Packet Idle; used as inter-stream fill code.

11000

0101

Start of stream delimiter, part 1 of 2; always use

in pair with K symbol.

10001

0101

Start of stream delimiter, part 2 of 2; always use

in pair with J symbol.

01101

Undefined

End of stream delimiter, part 1 of 2; always use

in pair with R symbol.

00111

Undefined

End of stream delimiter, part 2 of 2; always use

in pair with T symbol.

Invalid Code

00100

Undefined

Transmit Error; used to send HALT code-group

00000

Undefined

Invalid code

00001

Undefined

Invalid code

00010

Undefined

Invalid code

00011

Undefined

Invalid code

00101

Undefined

Invalid code

00110

Undefined

Invalid code

01000

Undefined

Invalid code

01100

Undefined

Invalid code

10000

Undefined

Invalid code

11001

Undefined

Invalid code

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