參數(shù)資料
型號： DS21Q44T
元件分類： 通信及網(wǎng)絡
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)： 32/105頁
文件大小： 620K
代理商： DS21Q44T
DS21Q44
32 of 105
SYMBOL
POSITION
NAME AND DESCRIPTION
presented at the TSER pin
Transmit Side Backplane Clock Select.
0=if TSYSCLK is 1.544 MHz
1=if TSYSCLK is 2.048 MHz
Receive Carrier Loss (RCL) Alternate Criteria.
0=RCL declared upon 255 consecutive zeros (125 us)
1=RCL declared upon 2048 consecutive zeros (1 ms)
TBCS
CCR3.1
RCLA
CCR3.0
CCR4: COMMON CONTROL REGISTER 4
(Address=A8 Hex)
(MSB)
RLB
(LSB)
TCM0
–
–
TCM4
TCM3
TCM2
TCM1
SYMBOL
POSITION
NAME AND DESCRIPTION
RLB
CCR4.7
Remote Loopback.
0 = loopback disabled
1 = loopback enabled
Not Assigned.
Should be set to zero when written.
Not Assigned.
Should be set to zero when written.
Transmit Channel Monitor Bit 4
. MSB of a channel decode
that deter-mines which transmit channel data will appear in the
TDS0M register. See Section 9 or details.
Transmit Channel Monitor Bit 3.
Transmit Channel Monitor Bit 2.
Transmit Channel Monitor Bit 1.
Transmit Channel Monitor Bit 0.
LSB of the channel decode.
–
–
CCR4.6
CCR4.5
CCR4.4
TCM4
TCM3
TCM2
TCM1
TCM0
CCR4.3
CCR4.2
CCR4.1
CCR4.0
CCR5: COMMON CONTROL REGISTER 5
(Address = AA Hex)
(MSB)
–
(LSB)
RCM0
RESALGN
TESALGN
RCM4
RCM3
RCM2
RCM1
SYMBOL
POSITION
NAME AND DESCRIPTION
–
CCR5.7
CCR5.6
Not Assigned.
Should be set to zero when written
Receive Elastic Store Align.
Setting this bit from a zero to a
one may force the receive elastic store’s write/read pointers to a
minimum separation of half a frame. No action will be taken if
the pointer separation is already greater or equal to half a frame.
If pointer separation is less then half a frame, the command will
be executed and data will be disrupted. Should be toggled after
RSYSCLK has been applied and is stable. Must be cleared and
set again for a subsequent align. See Section 13 for details.
RESALGN
相關PDF資料
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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DS2251T-32-16 128k Soft Microcontroller Module
DS2251T-64-16 CONNECTOR ACCESSORY
DS2251 128k Soft Microcontroller Module
相關代理商/技術參數(shù)
參數(shù)描述
DS21Q44T+ 功能描述:網(wǎng)絡控制器與處理器 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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21Q44TN 功能描述:網(wǎng)絡控制器與處理器 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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21Q48 功能描述:網(wǎng)絡控制器與處理器 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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21Q48A3N 功能描述:網(wǎng)絡控制器與處理器 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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21Q48B 功能描述:網(wǎng)絡控制器與處理器 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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
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