參數(shù)資料
型號： DS21Q44
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)： 36/105頁
文件大?。?/td> 620K
代理商： DS21Q44
DS21Q44
36 of 105
RIR: RECEIVE INFORMATION REGISTER
(Address=08 Hex)
(MSB)
TESF
(LSB)
CASRC
TESE
LORC
RESF
RESE
CRCRC
FASRC
SYMBOL
POSITION
NAME AND DESCRIPTION
TESF
RIR.7
Transmit Side Elastic Store Full.
Set when the transmit side
elastic store buffer fills and a frame is deleted.
Transmit Side Elastic Store Empty.
Set when the transmit
side elastic store buffer empties and a frame is repeated.
Loss of Receive Clock.
Set when the RCLK pin has not
transitioned for at least 2
μ
s (3
μ
s
±
1
μ
s).
Receive Side Elastic Store Full.
Set when the receive side
elastic store buffer fills and a frame is deleted.
Receive Side Elastic Store Empty.
Set when the receive side
elastic store buffer empties and a frame is repeated.
CRC Resync Criteria Met.
Set when 915/1000 code words are
received in error.
FAS Resync Criteria Met.
Set when 3 consecutive FAS words
are received in error.
CAS Resync Criteria Met.
Set when 2 consecutive CAS MF
alignment words are received in error.
TESE
RIR.6
LORC
RIR.5
RESF
RIR.4
RESE
RIR.3
CRCRC
RIR.2
FASRC
RIR.1
CASRC
RIR.0
SSR: SYNCHRONIZER STATUS REGISTER
(Address=1E Hex)
(MSB)
CSC5
(LSB)
CRC4SA
CSC4
CSC3
CSC2
CSC0
FASSA
CASSA
SYMBOL
POSITION
NAME AND DESCRIPTION
CSC5
CSC4
CSC3
CSC2
CSC0
SSR.7
SSR.6
SSR.5
SSR.4
SSR.3
CRC4 Sync Counter Bit 5.
MSB of the 6–bit counter.
CRC4 Sync Counter Bit 4.
CRC4 Sync Counter Bit 3.
CRC4 Sync Counter Bit 2.
CRC4 Sync Counter Bit 0.
LSB of the 6–bit counter. The next
to LSB is not accessible.
FAS Sync Active.
Set while the synchronizer is searching for
alignment at the FAS level.
CAS MF Sync Active.
Set while the synchronizer is searching
for the CAS MF alignment word.
CRC4 MF Sync Active.
Set while the synchronizer is
searching for the CRC4 MF alignment word.
FASSA
SSR.2
CASSA
SSR.1
CRC4SA
SSR.0
相關(guān)PDF資料
PDF描述
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
DS2251T-32-16 128k Soft Microcontroller Module
DS2251T-64-16 CONNECTOR ACCESSORY
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
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
DS21Q44TN 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
DS21Q48 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 5V Quad E1/T1/J1 Line Interface 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
DS21Q48A3N 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 5V Quad E1/T1/J1 Line Interface 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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