High Performance Two Port 10/100 Managed Ethernet Switch with
Datasheet
Table 7.2 4B/5B Code Table
CODE |
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| RECEIVER |
| TRANSMITTER |
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GROUP | SYM |
| INTERPRETATION |
| INTERPRETATION |
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11110 | 0 | 0 |
| 0000 |
| DATA | 0 |
| 0000 |
| DATA |
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01001 | 1 | 1 |
| 0001 |
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| 1 |
| 0001 |
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10100 | 2 | 2 |
| 0010 |
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| 2 |
| 0010 |
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10101 | 3 | 3 |
| 0011 |
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| 3 |
| 0011 |
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01010 | 4 | 4 |
| 0100 |
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| 4 |
| 0100 |
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01011 | 5 | 5 |
| 0101 |
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| 5 |
| 0101 |
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01110 | 6 | 6 |
| 0110 |
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| 0110 |
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01111 | 7 | 7 |
| 0111 |
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| 7 |
| 0111 |
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10010 | 8 | 8 |
| 1000 |
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| 8 |
| 1000 |
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10011 | 9 | 9 |
| 1001 |
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| 9 |
| 1001 |
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10110 | A | A |
| 1010 |
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| 1010 |
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10111 | B | B |
| 1011 |
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| 1011 |
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11010 | C | C |
| 1100 |
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| C |
| 1100 |
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11011 | D | D |
| 1101 |
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| 1101 |
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11100 | E | E |
| 1110 |
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| 1110 |
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11101 | F | F |
| 1111 |
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| 1111 |
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11111 | /I/ | IDLE |
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| Sent after /T/R/ until the MII Transmitter | ||||
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| Enable signal (TXEN) is received | ||||
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11000 | /J/ | First nibble of SSD, translated to “0101” | Sent for rising MII Transmitter Enable | ||||||||
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| following IDLE, else MII Receive Error | signal (TXEN) |
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| (RXER) |
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10001 | /K/ | Second nibble of SSD, translated to | Sent for rising MII Transmitter Enable | ||||||||
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| “0101” following J, else MII Receive | signal (TXEN) |
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| Error (RXER) |
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01101 | /T/ | First nibble of ESD, causes | Sent for falling MII Transmitter Enable | ||||||||
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| of CRS if followed by /R/, else assertion | signal (TXEN) |
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| of MII Receive Error (RXER) |
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00111 | /R/ | Second nibble of ESD, causes de- | Sent for falling MII Transmitter Enable | ||||||||
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| assertion of CRS if following /T/, else | signal (TXEN) |
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| assertion of MII Receive Error (RXER) |
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00100 | /H/ | Transmit Error Symbol |
| Sent for rising MII Transmit Error (TXER) | |||||||
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00110 | /V/ | INVALID, MII Receive Error (RXER) if | INVALID |
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| during MII Receive Data Valid (RXDV) |
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11001 | /V/ | INVALID, MII Receive Error (RXER) if | INVALID |
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| during MII Receive Data Valid (RXDV) |
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00000 | /V/ | INVALID, MII Receive Error (RXER) if | INVALID |
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| during MII Receive Data Valid (RXDV) |
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00001 | /V/ | INVALID, MII Receive Error (RXER) if | INVALID |
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| during MII Receive Data Valid (RXDV) |
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SMSC LAN9312 | 85 | Revision 1.4 |
| DATASHEET |
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