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參數(shù)資料
| 型號(hào)： | XRT72L71IQ |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 62/102頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC FRAMER DS3 ATM UNI 160PQFP |
| 產(chǎn)品變化通告： | XRT72Lx Series Obsolescence 02/May/2012 |
| 標(biāo)準(zhǔn)包裝： | 24 |
| 控制器類型： | DS3 ATM UNI，透明通道調(diào)幀器 |
| 電源電壓： | 3.3V |
| 電流 - 電源： | 120mA |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 160-BQFP |
| 供應(yīng)商設(shè)備封裝： | 160-PQFP（28x28） |
| 包裝： | 托盤 |
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XRT72L71
á
DS3 ATM UNI/CLEAR CHANNEL FRAMER
REV. 1.1.0
58
TABLE 22: RX DS3 LAPD STATUS REGISTER
REGISTER 21
RX DS3 LAPD STATUS REGISTER
HEX ADDRESS: 0X15
BIT
FUNCTION
TYPE
DEFAULT
DESCRIPTION-OPERATION
7Unused
RO
0
6Rx ABORT
RO
0
0: Indicates that the LAPD Receiver is NOT currently receiving an ABORT
Message.
1: Indicates that the LAPD Receiver is currently receiving an ABORT Mes-
sage.
NOTE: This bit-field is only active if the XRT72L71 has been configured to
support the “C-bit Parity” Framing format.
5
Rx LAPD Type(0)
RO
0
00: LAPD Message is Test Signal Identification type. (RAM Depth is 76 bytes
(38 words))
01: LAPD Message is Idle Signal Identification type. (RAM Depth is 76 bytes
(38 words))
10: LAPD Message is CL Path Identification type. (RAM Depth is 76 bytes
(38 words))
11: LAPD Message is ITU-T Path Identification type. (RAM Depth is 82 bytes
(41 words))
NOTE: These two bit-fields are only active if the XRT72L71 has been con-
figured to support the “C-bit Parity” Framing Format.
4
Rx LAPD Type(1)
RO
0
3
Rx CR Type
RO
0
0: Received LAPD message originated from customer installation
1: Received LAPD message originated from terminal in the network
NOTE: This bit-field is only active if the XRT72L71 has been configured to
support the “C-bit Parity” Framing Format.
2
Rx FCS Error
RO
0
0: CRC-16 Error was NOT detected within the most recently received LAPD
Message.
1: CRC-16 Error was detected within the most recently received LAPD Mes-
sage.
NOTE: This bit-field is only active if the XRT72L71 has been configured to
support the “C-bit Parity” Framing Format.
1
Rx End of Message
RO
0
0: Indicates that either the “Receive LAPD Message” Buffer is empty, or that
the LAPD Receiver is currently receiving a LAPD Message.
1: Indicates that a full LAPD Message has been received by the LAPD
Receiver and that this message is residing within the “Receive LAPD Mes-
sage” Buffer.
NOTE: This bit-field is only active if the XRT72L71 has been configured to
support the “C-bit Parity” Framing Format.
0
Flag Present
RO
0
0: Indicates that the LAPD Receiver is NOT currently receiving the “Flag
Sequence”, within the LAPD Channel.
1: Indicates that the LAPD Receiver is currently receiving the “Flag
Sequence” within the LAPD Channel.
NOTE: This bit-field is only active if the XRT72L71 has been configured to
support the “C-bit Parity” Framing Format.
相關(guān)PDF資料 |
PDF描述 |
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| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRT72L71IQ-F | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Single CH DS3 UNI (3.3V) 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 |
| 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 |
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