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XRT83SL314 Datasheet(PDF) 29 Page - Exar Corporation

Part # XRT83SL314
Description  14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
PDF  83 Pages
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XRT83SL314 Datasheet(HTML) 29 Page - Exar Corporation

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XRT83SL314
14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
REV. 1.0.1
26
2.9
RPOS/RNEG/RCLK
The digital output data can be programmed to either single rail or dual rail formats. Figure 16 is a timing
diagram of a repeating "0011" pattern in single-rail mode. Figure 17 is a timing diagram of the same fixed
pattern in dual rail mode.
FIGURE 16. SINGLE RAIL MODE WITH A FIXED REPEATING "0011" PATTERN
FIGURE 17. DUAL RAIL MODE WITH A FIXED REPEATING "0011" PATTERN
2.10
RxMUTE (Receiver LOS with Data Muting)
The receive muting function can be selected by setting RxMUTE to "1" in the appropriate global register. If
selected, any channel that experiences an RLOS condition will automatically pull RPOS and RNEG "Low" to
prevent data chattering. If RLOS does not occur, the RxMUTE will remain inactive until an RLOS on a given
channel occurs. The default setting for RxMUTE is "0" which is disabled. A simplified block diagram of the
RxMUTE function is shown in Figure 18.
FIGURE 18. SIMPLIFIED BLOCK DIAGRAM OF THE RXMUTE FUNCTION
RCLK
RPOS
00
0
1
1
RCLK
RPOS
00
0
1
1
RNEG
RLOS
RxMUTE
RPOS
RNEG



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