XRT83SL314ES Exar, XRT83SL314ES Datasheet - Page 40

• Manufacturer Part Number: XRT83SL314ES
• Description: LIN Transceivers 14 CHT1/E1 LIUSH
• Manufacturer: Exar

Specifications of XRT83SL314ES

• Product Category: LIN Transceivers
• Rohs: yes

XRT83SL314
REV. 1.0.1
The XRT83SL314 LIU is ideal for multiplexer or mapper applications where the network data crosses multiple
timing domains. As the higher data rates are de-multiplexed down to T1 or E1 data, stuffing bits are typically
removed which can leave gaps in the incoming data stream.
attenuator with a 32-Bit or 64-Bit FIFO that is used to smooth the gapped clock into a steady T1 or E1 output.
The maximum gap width of the 14-Channel LIU is shown in Table 11.
N
The XRT83SL314 has the ability to transmit all ones on a per channel basis by programming the appropriate
channel register. This function takes priority over the digital data present on the TPOS/TNEG inputs. For
example: If a fixed "0011" pattern is present on TPOS in single rail mode and TAOS is enabled, the transmitter
will output all ones. In addition, if digital or dual loopback is selected, the data on the RPOS output will be
equal to the data on the TPOS input. Figure 32 is a diagram showing the all ones signal at TTIP and TRING.
F
In addition to TAOS, the XRT83SL314 offers multiple diagnostic features for analyzing network integrity such
as ATAOS, Network Loop Code generation, and QRSS on a per channel basis by programming the
appropriate registers. These diagnostic features take priority over the digital data present on TPOS/TNEG
inputs. The transmitters will send the diagnostic code to the line and will be maintained in the digital loopback
if selected. When the LIU is responsible for sending diagnostic patterns, the LIU is automatically placed in the
single rail mode.
4.3
4.4
4.5
OTE
IGURE
: If the LIU is used in a loop timing system, the receive path has a dedicated jitter attenuator. See the Receive
Section of this datasheet.
32. TAOS (T
Transmit Jitter Attenuator
TAOS (Transmit All Ones)
Transmit Diagnostic Features
TAOS
T
ABLE
RANSMIT
11: M
1
A
AXIMUM
LL
FIFO D
O
1
32-Bit
64-Bit
NES
G
)
EPTH
AP
W
1
14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
IDTH FOR
37
M
ULTIPLEXER
M
AXIMUM
The transmit path has a dedicated jitter
/M
20 UI
50 UI
G
APPER
AP
W
IDTH
A
PPLICATIONS
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