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參數(shù)資料
| 型號： | XRT81L27 |
| 廠商： | Exar Corporation |
| 英文描述： | Seven Channel E1 Line Interface Unit with Clock Recovery(7通道 E1線接口單元（帶時鐘恢復(fù)）) |
| 中文描述： | 七通道E1線路接口單元的時鐘恢復(fù)（7通道素E1線接口單元（帶時鐘恢復(fù)）） |
| 文件頁數(shù)： | 18/28頁 |
| 文件大?。?/td> | 140K |
| 代理商： | XRT81L27 |
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XRT81L27
SEVEN CHANNEL E1 LINE INTERFACE UNIT WITH CLOCK RECOVERY
REV. P1.0.1
PRELIMINARY
18
A
NALOG
L
OOP
-
BACK
R
EGISTERS
A
DDRESS
: 0011
7
reserved
This bit position is reserved
R/W
0-6
ALB1-ALB7
Analog Loop-back: Writing a "1" to this bit enables Analog Local Loop-
back for the channel selected. Analog Loop-back ignores input data on
RTIP and RRing and internally route data at TTIP and TRing back to
the receive input. This loop-back mode exercises most of the functional
blocks. Analog Loop-back has priority over other Loop-back , TAOS and
RAOS requests.
R/W
TAOS R
EGISTERS
A
DDRESS
: 0100
7
reserved
This bit position is reserved
0-6
TAOS1-TAOS7
Transmit All Ones: Writing a "1" to this bit enables an AMI encoded all
ones data to be transmitted to the line for the channel selected. Transmit
input data is ignored when TAOS bit is set to a"1". Remote Loop-Back
has priority over TAOS request.
R/W
RAOS R
EGISTERS
A
DDRESS
: 0101
7
reserved
This bit position is reserved.
R/W
0-6
RAOS1-RAOS7 Receive All Ones: Writing a "1" to this bit enables all ones data to be
inserted on the receive side for the channel selected. In single-rail
mode, all ones data is a continuous High signal at RPOS output and in
dual-rail mode, a "1010 " pattern is sent to RPOS and RNEG while
receive input signal at RRTIP and RRing is ignored. Local Loop-Back
has priority RAOS and ARAOS request.
R/W
PDT
X
R
EGISTERS
A
DDRESS
: 0110
7
reserved
This bit position is reserved.
R/W
0-6
PDTx1-PDTx7
Power-down Transmitter: Writing a "1" to this bit shut down the transmit-
ter channel selected and placed TTIP/TRing in high impedance mode.
Individual pin control is also available to switch off the transmitter for fast
redundancy application both in Host and Hardware mode.
R/W
T
ABLE
5: R
EGISTER
C
ONTROL
B
IT
D
ESCRIPTION
B
IT
N
O
.
N
AME
F
UNCTION
R
EGISTER
T
YPE
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| XRT82D20 | Single Channel E1 Line Interface Unit(單通道E1線接口單元) |
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| XRT82L24 | Quad E1 Line Transceiver with Clock Recovery and Jitter Attenuator(四E1線收發(fā)器（帶時鐘恢復(fù)和振動衰減器）) |
| XRT82L34 | Quad T1/E1/J1 Line Transceiver with Clock Recovery and Jitter Attenuator(四 T1/E1/J1線收發(fā)器（帶時鐘恢復(fù)和振蕩衰減器）) |
| XRT82L38 | Octal E1/T1/J1 Line Transceiver with Clock Recovery and Jitter Attenuator(八 T1/E1/J1線收發(fā)器（帶時鐘恢復(fù)和振蕩衰減器）) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRT81L27IV | 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 |
| XRT81L27IV-F | 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 |
| XR-T8205CP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telephone Ringer |
| XR-T8205P | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telephone Ringer |
| XRT82D20 | 制造商:EXAR 制造商全稱:EXAR 功能描述:SINGLE CHANNEL E1 LINE INTERFACE UNIT |
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