XRT83SL34 datasheet(5/80 Pages) EXAR

5 / 80 page

XRT83SL34

QUAD T1/E1/J1 SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR

PRELIMINARY

REV. P1.0.8

Figure 12. Simplified Diagram for T1 in the External Termination Mode (RXTSEL= 0) ............. 28

TRANSMITTER (CHANNELS 0 - 3) ............................................................................................................ 29

Transmit Termination Mode ...................................................................................................................... 29

External Transmit Termination Mode ........................................................................................................ 29

Figure 13. Simplified Diagram for E1 in External Termination Mode (RXTSEL= 0) ................... 29

TABLE 8: TRANSMIT TERMINATION CONTROL ....................................................................................... 29

TABLE 9: TERMINATION SELECT CONTROL .......................................................................................... 29

REDUNDANCY APPLICATIONS ............................................................................................................. 30

TABLE 10: TRANSMIT TERMINATION CONTROL ..................................................................................... 30

TABLE 11: TRANSMIT TERMINATIONS ................................................................................................... 30

TYPICAL REDUNDANCY SCHEMES ..................................................................................................... 31

Figure 14. Simplified Block Diagram of the Transmit Section for 1:1 & 1+1 Redundancy ....... 32

Figure 15. Simplified Block Diagram - Receive Section for 1:1 and 1+1 Redundancy ............. 32

Figure 16. Simplified Block Diagram - Transmit Section for N+1 Redundancy ......................... 33

Figure 17. Simplified Block Diagram - Receive Section for N+1 Redundancy .......................... 34

PATTERN TRANSMIT AND DETECT FUNCTION ............................................................................................... 35

TRANSMIT ALL ONES (TAOS) .................................................................................................................... 35

NETWORK LOOP CODE DETECTION AND TRANSMISSION .............................................................................. 35

TABLE 12: PATTERN TRANSMISSION CONTROL ..................................................................................... 35

TABLE 13: LOOP-CODE DETECTION CONTROL ..................................................................................... 35

TRANSMIT AND DETECT QUASI-RANDOM SIGNAL SOURCE (TDQRSS) ......................................................... 36

LOOP-BACK MODES ................................................................................................................................... 37

TABLE 14: LOOP-BACK CONTROL IN HARDWARE MODE ........................................................................ 37

TABLE 15: LOOP-BACK CONTROL IN HOST MODE ................................................................................. 37

LOCAL ANALOG LOOP-BACK (ALOOP) ....................................................................................................... 38

REMOTE LOOP-BACK (RLOOP) ................................................................................................................. 38

Figure 18. Local Analog Loop-back signal flow ........................................................................... 38

Figure 19. Remote Loop-back mode with jitter attenuator selected in receive path ................. 38

DIGITAL LOOP-BACK (DLOOP) .................................................................................................................. 39

Figure 20. Remote Loop-back mode with jitter attenuator selected in Transmit path .............. 39

Figure 21. Digital Loop-back mode with jitter attenuator selected in Transmit path ................ 39

DUAL LOOP-BACK ...................................................................................................................................... 40

Figure 22. Signal flow in Dual loop-back mode ............................................................................ 40

MICROPROCESSOR PARALLEL INTERFACE .............................................................. 41

TABLE 16: MICROPROCESSOR INTERFACE SIGNAL DESCRIPTION ........................................................... 41

MICROPROCESSOR REGISTER TABLES ........................................................................................................ 42

TABLE 17: MICROPROCESSOR REGISTER ADDRESS ............................................................................. 42

TABLE 18: MICROPROCESSOR REGISTER BIT DESCRIPTION ................................................................. 42

MICROPROCESSOR REGISTER DESCRIPTIONS ............................................................................................. 45

TABLE 19: MICROPROCESSOR REGISTER #0, BIT DESCRIPTION ........................................................... 45

TABLE 20: MICROPROCESSOR REGISTER #1, BIT DESCRIPTION ........................................................... 46

TABLE 21: MICROPROCESSOR REGISTER #2, BIT DESCRIPTION ........................................................... 48

TABLE 22: MICROPROCESSOR REGISTER #3, BIT DESCRIPTION ........................................................... 50

TABLE 23: MICROPROCESSOR REGISTER #4, BIT DESCRIPTION ........................................................... 52

TABLE 24: MICROPROCESSOR REGISTER #5, BIT DESCRIPTION ........................................................... 53

TABLE 25: MICROPROCESSOR REGISTER #6, BIT DESCRIPTION ........................................................... 55

TABLE 26: MICROPROCESSOR REGISTER #7, BIT DESCRIPTION ........................................................... 56

TABLE 27: MICROPROCESSOR REGISTER #8, BIT DESCRIPTION ........................................................... 57

TABLE 28: MICROPROCESSOR REGISTER #9, BIT DESCRIPTION ........................................................... 57

TABLE 29: MICROPROCESSOR REGISTER #10, BIT DESCRIPTION ......................................................... 58

TABLE 30: MICROPROCESSOR REGISTER #11, BIT DESCRIPTION ......................................................... 58

TABLE 31: MICROPROCESSOR REGISTER #12, BIT DESCRIPTION ......................................................... 59

TABLE 32: MICROPROCESSOR REGISTER #13, BIT DESCRIPTION ......................................................... 59

TABLE 33: MICROPROCESSOR REGISTER #14, BIT DESCRIPTION ......................................................... 60

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