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XRT83L38 Datasheet(PDF) 21 Page - Exar Corporation

Part # XRT83L38
Description  OCTAL T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
PDF  91 Pages
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XRT83L38 Datasheet(HTML) 21 Page - Exar Corporation

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XRT83L38
OCTAL T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
REV. 1.0.0
17
LOOP1_0
LOOP0_0
LOOP1_1
LOOP0_1
LOOP1_2
LOOP0_2
LOOP1_3
LOOP0_3
LOOP1_4
LOOP0_4
LOOP1_5
LOOP0_5
LOOP1_6
LOOP0_6
LOOP1_7
LOOP0_7
A[1]
A[0]
A[3]
A[2]
A[5]
A[4]
A[7]
A[6]
D[7]
D[6]
D[5]
D[4]
D[3]
D[2]
D[1]
D[0]
179
180
177
178
175
176
173
174
67
68
69
70
71
72
73
74
179
180
177
178
175
176
173
174
67
68
69
70
71
72
73
74
A10
C10
A11
B10
C11
D11
A12
B11
T7
U7
V7
V8
V9
U8
U9
R7
A10
C10
A11
B10
C11
D11
A12
B11
T7
U7
V7
V8
V9
U8
U9
R7
I
Loop-back Control Pins, Bits [1:0] Channel_[7:0]
Loop-back Control bit 1, Channel _0
Loop-back Control bit 0, Channel _0
Loop-back Control bit 1, Channel _1
Loop-back Control bit 0, Channel _1
Loop-back Control bit 1, Channel _2
Loop-back Control bit 0, Channel _2
Loop-back Control bit 1, Channel _3
Loop-back Control bit 0, Channel _3
Loop-back Control bit 1, Channel _4
Loop-back Control bit 0, Channel _4
Loop-back Control bit 1, Channel _5
Loop-back Control bit 0, Channel _5
Loop-back Control bit 1, Channel _6
Loop-back Control bit 0, Channel _6
Loop-back Control bit 1, Channel _7
Loop-back Control bit 0, Channel _7
In Hardware mode, these pins control the Loop-Back mode for each
channel_n per the following table.
Microprocessor Address A[7:0] and Data Bus Pins D[7:0] - Host mode
These pins are microprocessor address and data bus pins. See “Microproces-
sor Interface Address Bus Pins - Host mode:” on page 13. and see “Micropro-
cessor Read/Write Data Bus Pins - Host mode” on page 12.
NOTE: These pins are internally pulled “Low” with a 50k
Ω resistor.
SIGNAL NAME
TQFP
PIN #
BGA
LEAD #
TYPE
DESCRIPTION
LOOP1_n
LOOP0_n
0
0
0
1
1
0
1
1
MODE
Normal Mode No Loop-Back Channel_n
Local Loop-Back Channel_n
Remote Loop-Back Channel_n
Digital Loop-Back Channel_n



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