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參數(shù)資料
| 型號： | XRT79L73 |
| 廠商： | Exar Corporation |
| 英文描述： | 3 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC |
| 中文描述： | 3 -通道DS3/E3自動柜員機用戶到網(wǎng)絡接口/ Combo IC對購買力平價 |
| 文件頁數(shù)： | 29/71頁 |
| 文件大?。?/td> | 495K |
| 代理商： | XRT79L73 |
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3 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC
PRELIMINARY
XRT79L73
REV. P1.0.0
27
J2
E25
K3
RxLOS1
RxLOS2
RxLOS3
O
O
O
Framer/UNI - Loss of Signal Output Indicator:
These pins are asserted when the Receive Section of the XRT79L73 encoun-
ters 180 consecutive 0's (for DS3 applications) or 32 consecutive 0's (for E3
applications) via the RxPOS and RxNEG pins. These pins will be negated once
the Receive DS3/E3 Framer has detected at least 60 "1s" out of 180 consecu-
tive bits (for DS3 applications) or has detected at least four consecutive 32 bit
strings of data that contain at least 8 "1s" in the receive path.
E2
D22
G4
RxPRED1
RxPRED2
RxPRED3
OO
O
O
Receiver Red Alarm Indicator - Receive PLCP Processor:
The XRT79L73 device will assert this output pin (e.g., toggle it "high")
anytime (and for the duration that) the Receive PLCP Processor block is
currently declaring any of the following defect conditions. PLCP OOF - Out of
Frame Defect Condition
PLCP LOF - Loss of Frame Defect Condition
Conversely, the XRT79L73 device will negate this output pin (e.g.,
toggle it "low") anytime (and for the duration that) the Receive PLCP
Processor block is NOT declaring any of the above-mentioned defect
conditions.
N
OTE
:
These output pins are only valid if the XRT79L73 has been configured to
operate in the ATM/PLCP Mode.
F1
E22
H1
RxPOOF1
RxPOOF2
RxPOOF3
O
O
O
Receive PLCP Processor Block - PLCP Out of Frame Defect Indicator:
The XRT79L73 device will assert this output pin (e.g., toggle it "high") anytime
(and for the duration that) the Receive PLCP Processor block is currently
declaring the PLCP OOF (Out of Frame) defect condition.
Conversely, the XRT79L73 device will negate this output pin (e.g., toggle it
"low") anytime (and for the duration that) the Receive PLCP Processor block is
NOT declaring the PLCP OOF defect condition.
N
OTE
:
These output pins are only active if the XRT79L73 has been configured
to operate in both the UNI and PLCP Mode.
E3
E21
G5
RxPLOF1
RxPLOF2
RxPLOF3
O
O
O
Receive PLCP Processor Block - PLCP Loss of Frame Defect Indicator
Output
The XRT79L73 device will assert this output pin (e.g., toggle it "high")
anytime (and for the duration that) the Receive PLCP Processor block
is currently declaring the PLCP LOF
condition.Conversely, the XRT79L73 device will negate this output pin
(e.g., toggle it "low") anytime (and for the duration that) the Receive
PLCP Processor block is NOT declaring the PLCP LOF defect
condition.
(Loss of Frame) defect
N
OTE
:
These output pins are only active is the XRT79L73 has been configured
to operate in the ATM/PLCP Mode.
P
IN
#
N
AME
TYPE
D
ESCRIPTION
相關PDF資料 |
PDF描述 |
|---|---|
| XRT79L73IB | 3 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC |
| XRT79L74 | 4 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC |
| XRT79L74IB | 4 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC |
| XRT8000ID | Clock Synchronizer/Adapter for Communications |
| XRT8000 | Clock Synchronizer/Adapter for Communications(用于通訊的時鐘同步設備/調(diào)整器) |
相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRT79L73IB | 制造商:EXAR 制造商全稱:EXAR 功能描述:3 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC |
| XRT79L74 | 制造商:EXAR 制造商全稱:EXAR 功能描述:4 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC |
| XRT79L74IB | 制造商:EXAR 制造商全稱:EXAR 功能描述:4 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC |
| XRT8000 | 制造商:EXAR 制造商全稱:EXAR 功能描述:Clock Synchronizer/Adapter for Communications |
| XRT8000_06 | 制造商:EXAR 制造商全稱:EXAR 功能描述:Clock Synchronizer/Adapter for Communications |
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