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XRT83SL28IV Datasheet(PDF) 13 Page - Exar Corporation

Part # XRT83SL28IV
Description  8-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
PDF  47 Pages
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XRT83SL28IV Datasheet(HTML) 13 Page - Exar Corporation

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XRT83SL28
REV. 1.0.0
8-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
11
FIFOS
19
I
FIFO Bit Depth Select Input
This pin is used to select the depth of the FIFO. By default, the FIFO is set to
32-Bit. To select a 64-Bit FIFO depth, this pin must be pulled "High". To meet
TBR12/13 applications, the FIFO size must be set to 64-bit.
NOTE: Internally pulled "Low" with a 50k
Ω resistor.
HW/Host
81
I
Same as Host Mode.
Reset
28
I
Same as Host Mode.
CHLB3
CHLB2
CHLB1
CHLB0
89
90
91
92
I
Channel Loop Back Select
CHLB[3:0] are used to select a particular channel or all eight channels simulta-
neously for Loop Back mode. See pins LBM[1:0] for selecting various types of
Loop Back diagnostics.
"0000" = Channel 0
"0001" = Channel 1
"0010" = Channel 2
"0011" = Channel 3
"0100" = Channel 4
"0101" = Channel 5
"0110" = Channel 6
"0111" = Channel 7
"1111" = All Eight Channels
NOTE: CHLB3 (Pin 89) is internally pulled "High" with a 50k
Ω Resistor.
RLOS7
RLOS6
RLOS5
RLOS4
RLOS3
RLOS2
RLOS1
RLOS0
61
65
116
120
48
44
137
133
O
Same as Host Mode.
RCLK7
RCLK6
RCLK5
RCLK4
RCLK3
RCLK2
RCLK1
RCLK0
58
62
119
123
51
47
134
130
O
Same as Host Mode.
RPOS7
RPOS6
RPOS5
RPOS4
RPOS3
RPOS2
RPOS1
RPOS0
59
63
118
122
50
46
135
131
O
Same as Host Mode.
NAME
PIN
TYPE
DESCRIPTION



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