參數(shù)資料
型號： DS21Q43AT
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)： 16/60頁
文件大?。?/td> 748K
代理商： DS21Q43AT
DS21Q43A
16 of 60
SYNC/RESYNC CRITERIA
Table 3-1
FRAME OR MULTI-
FRAME LEVEL
FAS
SYNC CRITERIA
FAS present in frame N
and N+2, and FAS not
present in frame N + 1
RESYNC CRITERIA
Three consecutive
incorrect FAS received
ITU SPEC.
G.706
4.1.1
4.1.2
Alternate (RCR1.2=1)
the above criteria is
met or three
consecutive incorrect
bit 2 of non-FAS
received
915 or more CRC4
code words out of 1000
received in error
Two consecutive MF
alignment words
received in error
CRC4
Two valid MF
alignment words found
within 8 ms
Valid MF alignment
word found and
previous timeslot 16
contains code other
than all 0s
G.706
4.2 and 4.3.2
CAS
G.732
5.2
RCR2: RECEIVE CONTROL REGISTER 2 (Address=11 Hex)
(MSB) (LSB)
Sa8S
Sa7S
Sa6S
Sa5S
Sa4S
RBCS
RESE
-
SYMBOL
POSITION
NAME AND DESCRIPTION
Sa8S
RCR2.7
Sa8 Bit Select.
Set to 1 to report the Sa8 bit at the RLINK pin;
set to 0 to not report the Sa8 bit.
Sa7 Bit Select.
Set to 1 to report the Sa7 bit at the RLINK pin;
set to 0 to not report the Sa7 bit.
Sa6 Bit Select.
Set to 1 to report the Sa6 bit at the RLINK pin;
set to 0 to not report the Sa6 bit.
Sa5 Bit Select.
Set to 1 to report the Sa5 bit at the RLINK pin;
set to 0 to not report the Sa5 bit.
Sa4 Bit Select.
Set to 1 to report the Sa4 bit at the RLINK pin;
set to 0 to not report the Sa4 bit.
Receive Side Backplane Clock Select.
0=if RSYSCLK is 1.544 MHz
1=if RSYSCLK is 2.048 MHz
Receive Side Elastic Store Enable.
0=elastic store is bypassed
1=elastic store is enabled
Not Assigned.
Should be set to 0 when written.
Sa7S
RCR2.6
Sa6S
RCR2.5
Sa5S
RCR2.4
Sa4S
RCR2.3
RBCS
RCR2.2
RESE
RCR2.1
-
RCR2.0
相關(guān)PDF資料
PDF描述
DS21Q43ATN Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
DS21Q44 Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
DS21Q44T Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
DS21Q44TN MICROSWITCH, SPDT, SIM ROLLER LEVER; Current, contact AC:5A; Force, operating:91.75gf; Travel, pre:16.0mm; Centres, fixing LxW:22.2mm; Temp, op. max:120(degree C); Temp, op. min:-40(degree C); Length / Height, external:9.25mm; Width, RoHS Compliant: Yes
DS2251T-128-16 CONNECTOR ACCESSORY
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS21Q43AT+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Quad E1 Framer 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
DS21Q43ATN 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Quad E1 Framer
DS21Q43-ATN 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Quad E1 Framer 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
DS21Q44 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Enhanced QUAD E1 FRAMER
DS21Q44T 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Enhanced Quad E1 Framer 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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