参数资料
| 型号： | XRT72L71IQ |
| 厂商： | Exar Corporation |
| 文件页数： | 68/102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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XRT72L71
á
DS3 ATM UNI/CLEAR CHANNEL FRAMER
REV. 1.1.0
64
TABLE 32: TX DS3 LAPD STATUS/INTERRUPT REGISTER
REGISTER 31
TX DS3 LAPD STATUS/INTERRUPT REGISTER
HEX ADDRESS: 0X1F
BIT
FUNCTION
TYPE
DEFAULT
DESCRIPTION-OPERATION
7-4
Unused
RO
0
3
Tx DL Start
R/W
0
0 to 1 transition configures the LAPD Transmitter to begin its transmission of
the PMDL (or LAPD Message) consisting of the data residing within the
“Transmit LAPD Message” buffer.
NOTE: This bit-field is only active if the XRT72L71 has been configured to
support the “C-bit Parity” Framing format.
2
Tx DL Busy
RO
0
0: LAPD Transmitter is NOT currently transmitting a LAPD Message to the
Remote Terminal Equipment; and is not available to transmit a new LAPD
Message.
1: LAPD Transmitter is currently transmitting a LAPD Message to the
Remote Terminal Equipment.
NOTE: This bit-field is only active if the XRT72L71 has been config-
ured to support the “C-bit Parity” Framing format.
1
Tx LAPD Interrupt Enable
R/W
0
0: “Completion of Transmission of LAPD Message” Interrupt is disabled.
1: “Completion of Transmission of LAPD Message” Interrupt is enabled. The
XRT72L71 will generate an interrupt, anytime the LAPD Transmitter has
completed its transmission of a given LAPD Message.
NOTE: This bit-field is only active if the XRT72L71 has been configured to
support the “C-bit Parity” Framing format.
0
Tx LAPD Interrupt Status
RUR
0
0: “Completion of Transmission of LAPD Message” interrupt has NOT
occurred since the last read of this register.
1: “Completion of Transmission of LAPD Message” interrupt has occurred
since the last read of this register.
NOTE: This bit-field is only active if the XRT72L71 has been configured to
support the “C-bit Parity” Framing format.
TABLE 33: PMON LCV EVENT COUNT REGISTER - MSB
REGISTER 32
PMON LCV EVENT COUNT REGISTER - MSB
HEX ADDRESS: 0X20
BIT
FUNCTION
TYPE
DEFAULT
DESCRIPTION-OPERATION
7-0
LCV Count High byte
RUR
0x00
This “Reset-upon-Read” register, along with “PMON LCV Event Count Reg-
ister - LSB” contains the 16-bit value for the total number of Line Code Viola-
tions that have been detected since the last read of this register.
This register contains the “High” Byte of this 16-bit expression.
NOTE: This register is only active if the “B3ZS Decoder” (within the
XRT72L71) has been enabled.
TABLE 34: PMON LCV EVENT COUNT REGISTER - LSB
REGISTER 33
PMON LCV EVENT COUNT REGISTER - LSB
HEX ADDRESS: 0X21
BIT
FUNCTION
TYPE
DEFAULT
DESCRIPTION-OPERATION
7-0
LCV Count Low byte
RUR
0x00
This “Reset-upon-Read” register, along with “PMON LCV Event Count Reg-
ister - MSB” contains the 16 bit value for the total number of Line Code Viola-
tions that have been detected since the last read of this register.
This register contains the “Low” Byte of this 16-bit expression.
NOTE: This register is only active if the “B3ZS Decoder” (within the
XRT72L71) has been enabled.
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相关代理商/技术参数 |
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| 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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