82P2281PFG IDT, Integrated Device Technology Inc, 82P2281PFG Datasheet - Page 102
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82P2281PFG
Manufacturer Part Number
82P2281PFG
Description
Manufacturer
IDT, Integrated Device Technology Inc
Datasheet
1.82P2281PFG.pdf
(371 pages)
Specifications of 82P2281PFG
Number Of Transceivers
1
Screening Level
Industrial
Mounting
Surface Mount
Package Type
TQFP
Operating Temperature (min)
-40C
Operating Temperature (max)
85C
Lead Free Status / RoHS Status
Compliant
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Part Number:
82P2281PFG
Manufacturer:
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3.27.2.2
Payload Loopback can be implemented. The received data output from
the Elastic Store Buffer is internally looped to the Transmit Payload Con-
trol.
system side, while the data to be transmitted from the system side is
replaced by the Payload Loopback data.
3.27.2.3
mented. The data stream output from the Transmit Buffer is internally
looped to the Frame Processor.
ted is still output to the line side, while the data stream received from the
line side is replaced by the Local Digital Loopback 1 data.
3.27.2.4
data stream output from the optional Receive Jitter Attenuator is inter-
nally looped to the optional Transmit Jitter Attenuator.
Table 78: Related Bit / Register In Chapter 3.27.2
IDT82P2281
Note:
* ID means Indirect Register in the Transmit Payload Control function block.
By programming the GSUBST[2:0] bits or the SUBST[2:0] bits, the
In Payload Loopback mode, the received data is still output to the
Enabled by the DLLP bit, the Local Digital Loopback 1 is imple-
In Local Digital Loopback 1 mode, the data stream to be transmit-
Enabled by the RLP bit, the Remote Loopback is implemented. The
GSUBST[2:0]
SUBST[2:0]
Payload Loopback
Local Digital Loopback 1
Remote Loopback
SRLP
SLLP
DLLP
RLP
DLP
ALP
Bit
ID * - Channel Control (for T1/J1) / Timeslot Control (for E1)
Maintenance Function Control 0
TPLC Configuration
Register
102
SINGLE T1/E1/J1 LONG HAUL / SHORT HAUL TRANSCEIVER
side is still output to the system, while the data stream to be transmitted
is replaced by the Remote Loopback data.
3.27.2.5
mented. The data stream output from the optional Transmit Jitter Attenu-
ator is internally looped to the Optional Receive Jitter Attenuator.
ted is still output to the line side, while the data stream received from the
line side is replaced by the Local Digital Loopback 2 data.
3.27.2.6
data stream to be transmitted on the TTIP/TRING pins is internally
looped to the RTIP/RRING pins.
output to the line side, while the data stream received from the line side
is replaced by the Analog Loopback data.
(T_HZ=0 & THZ pin is tied to ground).
In Remote Loopback mode, the data stream received from the line
Enabled by the DLP bit, the Local Digital Loopback 2 is imple-
In Local Digital Loopback 2 mode, the data stream to be transmit-
Enabled by the ALP bit, the Analog Loopback is implemented. The
In Analog Loopback mode, the data stream to be transmitted is still
If analog loopback is enabled, line driver should be set to normal
Local Digital Loopback 2
Analog Loopback
TPLC ID * - 01~18 (for T1/J1) / 00~1F (for E1)
Address (Hex)
0CB
02B
August 20, 2009
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