參數(shù)資料
型號： XRT72L74
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
文件頁數(shù)： 63/104頁
文件大?。?/td> 1301K
代理商： XRT72L74
á
XRT72L74
FOUR CHANNEL, DS3 ATM UNI/CLEAR-CHANNEL FRAMER
PRELIMINARY
REV. P1.0.0
63
T
ABLE
24:
T
X
DS3 M-B
IT
M
ASK
R
EGISTER
R
EGISTER
23 T
X
DS3 M-B
IT
M
ASK
R
EGISTER
H
EX
A
DDRESS
: 0
X
17
B
IT
F
UNCTION
T
YPE
D
EFAULT
D
ESCRIPTION
-O
PERATION
7
Tx FEBE Dat(2)
R/W
0
The Transmit DS3 Framer block will transmit the value “TxFEBEDat[2:0]”
within the “FEBE” bit-fields, if the “FEBE Register Enable” bit-field is set to
“1”.
N
OTE
:
This bit-field is only active if the XRT72L74 is configured to support
the “C-bit Parity” Framing Format.
6
Tx FEBE Dat(1)
R/W
0
5
Tx FEBE Dat(0)
R/W
0
4
FEBE Register Enable
R/W
0
0: FEBE bits, for transmission, are internally generated based on conditions,
as detected by the Receive DS3 Framer block.
1: Transmit FEBE bits are taken from the TxFEBEDat [2:0] register bits
N
OTE
:
This bit-field is only active if the XRT72L74 is configured to support
the “C-bit Parity” Framing Format.
3
Mbit Mask(2)
R/W
0
The Transmit DS3 Framer block performs an XOR operation of the MBitMask
bits with the corresponding “M” bit, within each outbound DS3 frame.
MBitMask(2) corresponds to first M-Bit (M0) in DS3 frame,
MBitMask(1) corresponds to second M-Bit (M1) in DS3 frame,
MBitMask(0) corresponds to last M-Bit (M0) in DS3 frame
N
OTES
:
1. Setting any of these bit-fields to “1”, will cause an “erred” M-bit to be
transmitted onto the line.
2. For normal operation, the user should set each of these bit-fields to
“0”.
2
Mbit Mask(1)
R/W
0
1
Mbit Mask(0)
R/W
0
0
TxError PBit
R/W
0
0: P Bits are calculated from input payload and inserted into the P-bit fields.
1: Calculated P Bits are inverted before transmission (thereby creating a “P-
Bit” Error).
N
OTE
:
For normal operation, set this bit-field to “0”.
T
ABLE
25:
T
X
DS3 F-B
IT
M
ASK
1 R
EGISTER
R
EGISTER
24 T
X
DS3 F-B
IT
M
ASK
1 R
EGISTER
H
EX
A
DDRESS
: 0
X
18
B
IT
F
UNCTION
T
YPE
D
EFAULT
D
ESCRIPTION
-O
PERATION
7-4
Unused
RO
0
3
F-bit Mask (27)
R/W
0
The Transmit DS3 Framer block performs an XOR operation of the F-Bit
Mask bits, with the corresponding “F” bits, within each outbound DS3 frame.
FBitMask(0) corresponds to first F-Bit (F1) is the DS3 frame, FBitMask (1)
corresponds to 2nd F-Bit (F0)in the DS3 frame,...FBitMask(27) corresponds
to the last F-Bit of the M-Frame.
N
OTES
:
1. Setting any of these bit-fields to “1” will cause an “erred” F-bit to be
transmitted onto the line.
2. For normal operation, the user should set each of these bit-fields to
“0”.
2
F-bit Mask (26)
R/W
0
1
F-bit Mask (25)
R/W
0
0
F-bit Mask (24)
R/W
0
相關(guān)PDF資料
PDF描述
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
XRT73L02MIV 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
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
XRT7300IV-F 功能描述:外圍驅(qū)動器與原件 - 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
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*