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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LAN8740Ai-EN датащи(PDF) 18 Page - Microchip Technology |
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LAN8740Ai-EN датащи(HTML) 18 Page - Microchip Technology |
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18 / 136 page  LAN8740A/LAN8740Ai DS00001987A-page 18 2013-2015 Microchip Technology Inc. TABLE 3-1: 4B/5B CODE TABLE Code Group Sym Receiver Interpretation Transmitter Interpretation 11110 0 0 0000 DATA 0 0000 DATA 01001 1 1 0001 1 0001 10100 2 2 0010 2 0010 10101 3 3 0011 3 0011 01010 4 4 0100 4 0100 01011 5 5 0101 5 0101 01110 6 6 0110 6 0110 01111 7 7 0111 7 0111 10010 8 8 1000 8 1000 10011 9 9 1001 9 1001 10110 A A 1010 A 1010 10111 B B 1011 B 1011 11010 C C 1100 C 1100 11011 D D 1101 D 1101 11100 E E 1110 E 1110 11101 F F 1111 F 1111 11111 I IDLE Sent after /T/R until TXEN 11000 J First nibble of SSD, translated to “0101” following IDLE, else RXER Sent for rising TXEN 10001 K Second nibble of SSD, translated to “0101” following J, else RXER Sent for rising TXEN 01101 T First nibble of ESD, causes de-assertion of CRS if followed by /R/, else assertion of RXER Sent for falling TXEN 00111 R Second nibble of ESD, causes deasser- tion of CRS if following /T/, else assertion of RXER Sent for falling TXEN 00100 H Transmit Error Symbol Sent for rising TXER 00110 V INVALID, RXER if during RXDV INVALID 11001 V INVALID, RXER if during RXDV INVALID 00000 V Indicates to receiver that the transmitter will be going to LPI Sent due to LPI. Used to tell receiver before transmitter goes to LPI. Also used for refresh cycles during LPI. 00001 V INVALID, RXER if during RXDV INVALID 00010 V INVALID, RXER if during RXDV INVALID 00011 V INVALID, RXER if during RXDV INVALID 00101 V INVALID, RXER if during RXDV INVALID 01000 V INVALID, RXER if during RXDV INVALID 01100 V INVALID, RXER if during RXDV INVALID 10000 V INVALID, RXER if during RXDV INVALID |
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