參數(shù)資料
型號： DS21Q44T
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)： 4/105頁
文件大小： 620K
代理商： DS21Q44T
DS21Q44
4 of 105
TABLE OF CONTENTS
1.
INTRODUCTION .............................................................................................................................. 2
2.
DS21Q44 PIN DESCRIPTION ......................................................................................................... 7
3.
DS21Q44 PIN FUNCTION DESCRIPTION ................................................................................ 13
4.
DS21Q44 REGISTER MAP............................................................................................................. 20
5.
PARALLEL PORT........................................................................................................................... 24
6.
CONTROL, ID AND TEST REGISTERS..................................................................................... 24
7.
STATUS AND INFORMATION REGISTERS............................................................................. 34
8.
ERROR COUNT REGISTERS....................................................................................................... 40
9.
DS0 MONITORING FUNCTION................................................................................................... 43
10.
SIGNALING OPERATION ............................................................................................................ 45
10.1 PROCESSOR BASED SIGNALING........................................................................................ 45
10.2 HARDWARE BASED SIGNALING........................................................................................ 48
11.
PER–CHANNEL CODE GENERATION AND LOOPBACK ................................................... 49
11.1 TRANSMIT SIDE CODE GENERATION............................................................................... 49
11.1.1 Simple Idle Code Insertion and Per-Channel Loopback................................................... 49
11.1.2 Per-Channel Code Insertion.............................................................................................. 50
11.2 RECEIVE SIDE CODE GENERATION.................................................................................. 51
12.
CLOCK BLOCKING REGISTERS............................................................................................... 52
13.
ELASTIC STORES OPERATION ................................................................................................ 53
13.1 RECEIVE SIDE......................................................................................................................... 54
13.2 TRANSMIT SIDE ..................................................................................................................... 54
14.
ADDITIONAL (SA) AND INTERNATIONAL (SI) BIT OPERATION .................................... 54
14.1 HARDWARE SCHEME........................................................................................................... 54
14.2 INTERNAL REGISTER SCHEME BASED ON DOUBLE-FRAME..................................... 55
14.3 INTERNAL REGISTER SCHEME BASED ON CRC4 MULTIFRAME............................... 57
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PDF描述
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
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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
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
DS21Q48B 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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