參數(shù)資料
型號(hào)： XRT75R12
廠商： Exar Corporation
英文描述： TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
中文描述： 第十二章通道E3/DS3/STS-1線路接口單元與抖動(dòng)衰減器
文件頁數(shù)： 81/89頁
文件大?。?/td> 457K
代理商： XRT75R12
PRELIMINARY
XRT75R12
REV. P1.0.2
TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
78
B
IT
N
UMBER
N
AME
T
YPE
D
ESCRIPTION
7 - 6
Reserved
5
PRBS Enable
R/W
PRBS Generator and Receiver Enable - Channel_n:
This READ/WRITE bit-field is used to enable or disable the PRBS
Generator and Receiver within a given Channel of the XRT75R12.
If the user enables the PRBS Generator and Receiver, then the follow-
ing will happen.
1.
The PRBS Generator (which resides within the Transmit Section
of the Channel) will begin to generate an unframed, 2^15-1
PRBS Pattern (for DS3 and STS-1 applications) and an
unframed, 2^23-1 PRBS Pattern (for E3 applications).
2.
The PRBS Receiver (which resides within the Receive Section
of the Channel) will now be enabled and will begin to search the
incoming data for the above-mentioned PRBS patterns.
0 - Disables both the PRBS Generator and PRBS Receiver within the
corresponding channel.
1 - Enables both the PRBS Generator and PRBS Receiver within the
corresponding channel.
N
OTES
:
1.
To check and monitor PRBS Bit Errors, DR (Dual Rail) mode
will be over-ridden and Single Rail mode forced for the
duration of this mode. This will configure the RNEG/LCV_n
output pin to function as a PRBS Error Indicator. All errors
will be flagged on this pin. The errors will also be
accumulated in the 16 bit Error counter for the channel.
2.
If the user enables the PRBS Generator and PRBS Receiver,
the Channel will ignore the data that is being accepted from
the System-side Equipment (via the TxPOS_n and TxNEG_n
input pins) and will overwrite this outbound data with the
PRBS Pattern.
3.
The system must provide an accurate and stable data-rate
clock to the TxClk_n pin during this operation.
4
RLB_n
R/W
Loop-Back Select - RLB Bit - Channel_n:
This READ/WRITE bit-field along with the corresponding LLB_n bit-
field is used to configure a given channel into various loop-back modes
ass shown by the following table.
3
LLB_n
R/W
Loop-Back Select - LLB Bit-field - Channel_n:
See the table (above) for RLB_n.
Loop-back Mode
Digital Local Loop-back Mode
Analog Local Loop-back Mode
Remote Loop-back Mode
Normal (No Loop-back) Mode
RLB_n
1
0
1
0
LLB_n
1
1
0
0
相關(guān)PDF資料
PDF描述
XRT75R12IB TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
XRT75VL00 E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
XRT75VL00IV E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
XRT79L71 1 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC
XRT79L71IB 1 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRT75R12_07 制造商:EXAR 制造商全稱:EXAR 功能描述:TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER
XRT75R12_0710 制造商:EXAR 制造商全稱:EXAR 功能描述:TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER
XRT75R12D 制造商:EXAR 制造商全稱:EXAR 功能描述:TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET
XRT75R12D_06 制造商:EXAR 制造商全稱:EXAR 功能描述:TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET
XRT75R12D_07 制造商:EXAR 制造商全稱:EXAR 功能描述:TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*