XRT83L38ES Exar, XRT83L38ES Datasheet - Page 54
XRT83L38ES
Manufacturer Part Number
XRT83L38ES
Description
Peripheral Drivers & Components - PCIs
Manufacturer
Exar
Datasheet
1.XRT83L38ES.pdf
(87 pages)
Specifications of XRT83L38ES
Product Category
Peripheral Drivers & Components - PCIs
Rohs
yes
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XRT83L38
OCTAL T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
R
EGISTER
00000001
00010001
00100001
00110001
01000001
01010001
01100001
01110001
B
D7
D6
D5
D4
IT
A
#
DDRESS
TERSEL1_n Termination Impedance Select1:
TERSEL0_n Termination Impedance Select bit 0:
C
C
C
C
C
C
C
C
C
RXTSEL_n
TXTSEL_n
HANNEL
HANNEL
HANNEL
HANNEL
HANNEL
HANNEL
HANNEL
HANNEL
HANNEL
N
AME
T
ABLE
_n
_0
_1
_2
_3
_4
_5
_6
_7
20: M
Receiver Termination Select: In Host mode, this bit is used
to select between the internal and external line termination
modes for the receiver according to the following table;
Transmit Termination Select: In Host mode, this bit is used
to select between the internal and external line termination
modes for the transmitter according to the following table;
In Host mode and in internal termination mode, (TXTSEL = “1”
and RXTSEL = “1”) TERSEL[1:0] control the transmit and
receive termination impedance according to the following
table;
In the internal termination mode, the receiver termination of
each receiver is realized completely by internal resistors or by
the combination of internal and one fixed external resistor.
In the internal termination mode, the transmitter output should
be AC coupled to the transformer.
ICROPROCESSOR
TERSEL1 TERSEL0
0
0
1
1
RXTSEL
TXTSEL
0
1
0
1
51
R
EGISTER
0
1
0
1
F
UNCTION
RX Termination
TX Termination
External
External
Internal
Internal
#1, B
Termination
IT
100Ω
110Ω
120Ω
75Ω
D
ESCRIPTION
R
EGISTER
T
R/W
R/W
R/W
R/W
YPE
REV. 1.0.2
R
V
ALUE
ESET
0
0
0
0
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