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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)： | 73/89頁 |
| 文件大?。?/td> | 457K |
| 代理商： | XRT75R12 |
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PRELIMINARY
XRT75R12
REV. P1.0.2
TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
70
T
ABLE
30: XRT75R12 R
EGISTER
MAP
SHOWING
A
LARM
S
TATUS
R
EGISTERS
(AS_
N
)
T
ABLE
31: A
LARM
S
TATUS
R
EGISTER
- C
HANNEL
N
A
DDRESS
L
OCATION
= 0
XM
3
B
IT
7
B
IT
6
B
IT
5
B
IT
4
B
IT
3
B
IT
2
B
IT
1
B
IT
0
Reserved
Loss of PRBS
Pattern Sync
Digital LOS
Defect
Declared
Analog LOS
Defect
Declared
FL
(FIFO Limit)
Alarm
Declared
Receive LOL
Defect
Declared
Receive LOS
Defect
Declared
Transmit
DMO
Condition
R/O
R/O
R/O
R/O
R/O
R/O
R/O
B
IT
N
UMBER
N
AME
T
YPE
D
ESCRIPTION
7
Reserved
6
Loss of PRBS Pat-
tern Lock
R/O
Loss of PRBS Pattern Lock Indicator:
This READ-ONLY bit-field indicates whether or not the PRBS Receiver
(within the Receive Section of Channel n) is declaring PRBS Lock
within the incoming PRBS pattern.
If the PRBS Receiver detects a very large number of bit-errors within
its incoming data-stream, then it will declare the Loss of PRBS Lock
Condition.
Conversely, if the PRBS Receiver were to detect its pre-determined
PRBS pattern with the incoming DS3, E3 or STS-1 data-stream, (with
little or no bit errors) then the PRBS Receiver will clear the Loss of
PRBS Lock condition.
0 - Indicates that the PRBS Receiver is currently declaring the PRBS
Lock condition within the incoming DS3, E3 or STS-1 data-stream.
1 - Indicates that the PRBS Receiver is currently declaring the Loss of
PRBS Lock condition within the incoming DS3, E3 or STs-1 data-
stream.
N
OTE
:
This register bit is only valid if all of the following are true.
a.
The PRBS Generator block (within the Transmit Section of the
Chip is enabled).
b.
The PRBS Receiver is enabled.
c.
The PRBS Pattern (that is generated by the PRBS Generator) is
somehow looped back into the Receive Path (via the Line-Side)
and in-turn routed to the receive input of the PRBS Receiver.
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 |
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