參數(shù)資料
型號: XRT73L04
廠商: Exar Corporation
英文描述: 4 Channel E3/DS3/STS-1 Line Interface Unit(4通道 E3/DS3/STS-1線接口單元)
中文描述: 4頻道E3/DS3/STS-1線路接口單元(4通道E3/DS3/STS-1線接口單元)
文件頁數(shù): 41/62頁
文件大?。?/td> 781K
代理商: XRT73L04
á
XRT73L04
4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
PRELIMINARY
REV. P1.0.5
37
Figure 22 illustrates the B3ZS Decoder at work with
two separate Zero Suppression patterns in the in-
coming Dual-Rail Data Stream.
3.4.2
If the XRT73L04 is configured to operate in the E3
Mode, then each of the HDB3/B3ZS Decoding Blocks
performs HDB3 Decoding. When the Decoders are
operating in this mode, they each parse through the
incoming Dual-Rail data and check for the occurrence
of either a "000V" or a "B00V" pattern. If the HDB3
HDB3 Decoding (E3 Applications)
Decoder detects this particular pattern, then it substi-
tutes these bits with a “0000" pattern.
Figure 23 illustrates the HDB3 Decoder at work with
two separate Zero Suppression patterns, in the in-
coming Dual-Rail Data Stream.
N
OTE
:
If the HDB3 Decoder detects any bipolar violation
(e.g., "V") pulses that is not in accordance with the HDB3
Line Code format, or if the HDB3 Decoder detects a string
of 4 (or more) "0's" in the incoming line signal, then the
HDB3 Decoder flags this event as a Line Code Violation by
pulsing the LCV output pin “High".
3.4.3
Configuring the HDB3/B3ZS Decoder
The XRT733L04 can enable or disable the HDB3/
B3ZS Decoder blocks by either of the following
means.
a. Operating in the HOST Mode
Enable the HDB3/B3ZS Decoder block of Channel(n)
by writing a "0" into the
(SR/DR)_(n)
bit-field within
Command Register CR3-(n), as illustrated below.
F
IGURE
22. A
N
E
XAMPLE
OF
B3ZS D
ECODING
Line Signal
RxClk
Data
1
1
1
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
RPOS
RNEG
B
0
V
0
V
0
F
IGURE
23. A
N
E
XAMPLE
OF
HDB3 D
ECODING
B
0
V
0
0
V
Line Signal
0
0
RxClk
Data
1
1
1
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
0
1
0
0
0
0
0
0
0
0
RPOS
RNEG
相關(guān)PDF資料
PDF描述
XRT73L06 SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
XRT73L06IB SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
XRT73LC00A E3/DS3/STS-1 LINE INTERFACE UNIT
XRT73LC00AIV E3/DS3/STS-1 LINE INTERFACE UNIT
XRT73LC03A 3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRT73L04A 制造商:EXAR 制造商全稱:EXAR 功能描述:4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
XRT73L04AIV 制造商:EXAR 制造商全稱:EXAR 功能描述:4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
XRT73L04B 制造商:EXAR 制造商全稱:EXAR 功能描述:4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
XRT73L04BES 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流(最大值):595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
XRT73L04BIV 功能描述:外圍驅(qū)動器與原件 - PCI RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray