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參數(shù)資料
| 型號(hào)： | XRT72L73 |
| 廠商： | Exar Corporation |
| 元件分類： | 通信及網(wǎng)絡(luò) |
| 英文描述： | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| 中文描述： | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| 文件頁(yè)數(shù)： | 28/105頁(yè) |
| 文件大?。?/td> | 1307K |
| 代理商： | XRT72L73 |
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XRT72L73
THREE CHANNEL, DS3 ATM UNI/CLEAR-CHANNEL FRAMER
REV. P1.0.1
á
PRELIMINARY
28
AF8
AE9
AF9
TxGFCMSB_0
TxGFCMSB_1
TxGFCMSB_2
O
Transmit GFC Nibble-Field Serial Input Port—MSB Indicator:
This signal, along with TxGFC and TxGFCClk combine to function as the “Transmit
GFC Nibble Field” serial input port. This output signal will pulse “High” when the
MSB (most significant bit) of the GFC Nibble (for a given cell) is expected at the
TxGFC input pin.
N
OTE
:
This output pin is only active whenever the XRT72L73 has been configured
to operate in the “ATM UNI” Mode.
Rx Cell Processor
AD19
AE19
AF19
RxCellRxed_0
RxCellRxed_1
RxCellRxed_2
O
Receive Cell Processor—Cell Received Indicator:
This output pin pulses “High” each time the Receive Cell Processor receives a new
cell from the Receive PLCP Processor or the Receive DS3 Framer.
N
OTE
:
This output pin is only active if the XRT72L73 has been configured to oper-
ate in the “ATM UNI” Mode.
Receive GFC Nibble Field Serial Output pin:
This pin, along with the RxGFCClk and the RxGFCMSB pins form the “Receive
GFC Nibble-Field” serial output port. This pin will serially output the contents of the
GFC Nibble field of each cell that is processed through the Receive Cell Proces-
sor. This data is serially clocked out of this pin on the rising edge of the RxGFCClk
signal. The Most Significant Bit (MSB) of each GFC value is designated by a pulse
at the RxGFCMSB output pin.
N
OTE
:
This output pin is only active if the XRT72L73 has been configured to oper-
ate in the “ATM UNI” Mode.
AF23
AF25
AD26
RxGFC_0
RxGFC_1
RxGFC_2
O
Y24
Y25
Y26
RxGFCClk_0
RxGFCClk_1
RxGFCClk_2
O
Received GFC Nibble Serial Output Port Clock Signal:
This output pin functions as a part of the “Receive GFC Nibble-Field” Serial Output
Port; also consisting of the RxGFC and RxGFCMSB pins. This pin provides a
clock pulse which allows external circuitry to latch in the GFC Nibble-Data via the
RxGFC output pin.
N
OTE
:
This output pin is only active if the XRT72L73 has been configured to oper-
ate in the “ATM UNI” Mode.
Received GFC Nibble Field—MSB Indicator
:
This output pin functions as a part of the “Receive GFC-Nibble Field” Serial Output
port; which also consists of the RxGFC and RxGFCClk pins. This pin pulses
“High” the instant that the MSB (Most Significant Bit) of a GFC Nibble is being out-
put on the RxGFC pin.
N
OTE
:
This output pin is only active if the XRT72L73 has been configured to oper-
ate in the “ATM UNI” Mode.
AB24
AB26
AA25
RxGFCMSB_0
RxGFCMSB_1
RxGFCMSB_2
O
W24
W25
W26
RxLCD_0
RxLCD_1
RxLCD_2
O
Loss of Cell Delineation Indicator:
This active-"High" output pin will be asserted whenever the Receive Cell Proces-
sor has experienced a “Loss of Cell Delineation”. This pin will return “Low” once
the Receive Cell Processor has regained Cell Delineation.
N
OTE
:
This output pin is only active if the XRT72L73 has been configured to oper-
ate in the “ATM UNI” Mode.
PIN DESCRIPTIONS
P
IN
#
N
AME
T
YPE
D
ESCRIPTION
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| XRT72L74 | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| XRT7300IV | E3/DS3/STS-1 LINE INTERFACE UNIT |
| XRT7300 | E3/DS3/STS-1 LINE INTERFACE UNIT |
| XRT7302 | 2 Channel E3/DS3/STS-1 Line Interface Unit(2通道 E3/DS3/STS-1線接口單元) |
| XRT73L02M | TWO CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRT72L73IB | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC |
| XRT72L74IB | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC |
| XRT7300 | 制造商:EXAR 制造商全稱:EXAR 功能描述:E3/DS3/STS-1 LINE INTERFACE UNIT |
| XRT7300ES | 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(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| XRT7300IV | 功能描述:外圍驅(qū)動(dòng)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(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
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