参数资料
| 型号： | XRT72L71IQ |
| 厂商： | Exar Corporation |
| 文件页数： | 102/102页 |
| 文件大小： | 0K |
| 描述： | IC FRAMER DS3 ATM UNI 160PQFP |
| 产品变化通告： | XRT72Lx Series Obsolescence 02/May/2012 |
| 标准包装： | 24 |
| 控制器类型： | DS3 ATM UNI，透明通道调帧器 |
| 电源电压： | 3.3V |
| 电流 - 电源： | 120mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 160-BQFP |
| 供应商设备封装： | 160-PQFP（28x28） |
| 包装： | 托盘 |
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á
XRT72L71
DS3 ATM UNI/CLEAR CHANNEL FRAMER
REV. 1.1.0
95
Line Interface Scan register provides DS3UNI framer
chip capability to monitor status of line interface units.
Configuration in this register is connected directly to
the corresponding discrete I/O pins.
Note: These signals drive and scan the line interface
chip XRT7300.
TABLE 116: LINE INTERFACE SCAN REGISTER
REGISTER 115
LINE INTERFACE SCAN REGISTER
HEX ADDRESS: 0X73
BIT
FUNCTION
TYPE
DEFAULT
DESCRIPTION-OPERATION
7-3
Unused
RO
0
2
DMO
RO
0
This “Read-Only” bit-field permits the user to determine the current state of
the “DMO” input pin. This input pin can be connected to the “DMO” output
pin of either the XRT7300 or the XRT73L00 device.
0: Indicates that the current state of the “DMO” input pin is “LOW”. If this
input pin is connected to the DMO output of the LIU IC, then this may indi-
cate the occurrence of a fault condition in the “Transmit Output” line.
1: Indicates that the current state of the “DMO” input pin is “High”. If this
input pin is connected to the DMO output of the LIU IC, then this may indi-
cate the occurrence of normal operation in the “Transmit Output” line.
NOTE: For more detailed information on the behavior of the DMO output pin
(from the LIU), please consult either the “XRT7300” or the “XRT73L00” data
sheet.
1RLOL
RO
0
This “Read-Only” bit-field permits the user to determine the current state of
the “RLOL” input pin. This input pin can be connected to the “RLOL” output
pin of either the XRT7300 or the XRT73L00 device.
0: Indicates that the current state of the “RLOL” input pin is “LOW”. If this
input pin is connected to the “RLOL” output of the LIU IC, then it indicates
that the “Clock Recovery PLL” (within the LIU IC) is locked onto the “incom-
ing” DS3 line signal.
1: Indicates that the current state of the “RLOL” input pin is “HIGH’. If this
input pin is connected to the “RLOL” output of the LIU IC, then it indicates
that the “Clock Recovery PLL” (within the LIU IC) is NOT locked onto the
“incoming” DS3 line signal.
NOTE: For more detailed information on the behavior of the “RLOL” output
pin (from the LIU), please consult either the “XRT7300” or the “XRT73L00”
data sheet.
0RLOS
RO
0
This “Read-Only” bit-field permits the user to determine the current state of
the “RLOS” input pin. This input pin can (and should be) connected to the
“RLOS” output pin of either the XRT7300 or the XRT73L00 device.
0: Indicates that the current state of the “RLOS” input pin is “LOW”. If this
input pin is connected to the “RLOS” output pin of the LIU IC, then it indi-
cates that the LIU is NOT currently declaring an LOS (Loss of Signal) condi-
tion.
1: Indicates that the current state of the “RLOS” input pin is “HIGH”. If this
input pin is connected to the “RLOS output pin of the LIU IC, then it indicates
that the LIU is currently declaring an LOS condition.
NOTES:
1. If this input pin is pulled “High”, then the XRT72L71 will
automatically declare an LOS condition. As a conse-
quence, the user should not treat the the “RLOS” input pin
as a General Purpose Input pin.
2. For more detailed on the “LOS Declaration Criteria” for the
XRT7300 or the XRT73L00 device, please consult either the
“XRT7300” or the “XRT73L00” data sheet.
相关PDF资料 |
PDF描述 |
|---|---|
| XRT73L02MIV-F | IC LIU E3/DS3/STS-1 2CH 100TQFP |
| XRT73L03BIV-F | IC LIU E3/DS3/STS-1 3CH 120LQFP |
| XRT73L04BIV-F | IC LIU E3/DS3/STS-1 4CH 144LQFP |
| XRT73L06IB-F | IC LIU E3/DS3/STS-1 6CH 217BGA |
| XRT73LC00AIV-F | IC LIU STS1/DS3/E3 SGL 44TQFP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| XRT72L71IQ-F | 功能描述:网络控制器与处理器 IC Single CH DS3 UNI (3.3V) RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
| XRT72L73IB | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Telecommunication IC |
| XRT72L74IB | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Telecommunication IC |
| XRT7300 | 制造商:EXAR 制造商全称:EXAR 功能描述:E3/DS3/STS-1 LINE INTERFACE UNIT |
| XRT7300ES | 功能描述:网络控制器与处理器 IC RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
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