參數資料
型號： DS21FT40
元件分類： 通信及網絡
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： 27/87頁
文件大?。?/td> 386K
代理商： DS21FT40
DS21FT40
27 of 87
SYMBOLS
POSITION
NAME AND DESCRIPTION
RBCS
RCR2.2
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 zero when written.
RESE
RCR2.1
–
RCR2.0
TCR1: TRANSMIT CONTROL REGISTER 1 (Address=12 Hex)
(MSB)
ODF
TFPT
T16S
(LSB)
TSIO
TUA1
TSiS
TSA1
TSM
SYMBOLS
POSITION
NAME AND DESCRIPTION
ODF
TCR1.7
Output Data Format.
0 = bipolar data at TPOS and TNEG
1 = NRZ data at TPOS; TNEG=0
Transmit Timeslot 0 Pass Through.
0 = FAS bits/Sa bits/Remote Alarm sourced internally from
the TAF and TNAF registers
1 = FAS bits/Sa bits/Remote Alarm sourced from TSER
Transmit Timeslot 16 Data Select.
0 = sample timeslot 16 at TSER pin
1 = source timeslot 16 from TS0 to TS15 registers
Transmit Unframed All Ones.
0 = transmit data normally
1 = transmit an unframed all one’s code at TPOS and TNEG
Transmit International Bit Select.
0 = sample Si bits at TSER pin
1 = source Si bits from TAF and TNAF registers (in this
mode, TCR1.6 must be set to 0)
Transmit Signaling All Ones.
0 = normal operation
1 = force timeslot 16 in every frame to all ones
TSYNC Mode Select.
0 = frame mode (see the timing in Section 16)
1 = CAS and CRC4 multiframe mode (see the timing in
Section 16)
TSYNC I/O Select.
0 = TSYNC is an input
1 = TSYNC is an output
TFPT
TCR1.6
T16S
TCR1.5
TUA1
TCR1.4
TSiS
TCR1.3
TSA1
TCR1.2
TSM
CR1.1
TSIO
TCR1.0
NOTE:
See Figure 16–15 for more details about how the Transmit Control Registers affect the operation of the
DS21FT40.
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相關代理商/技術參數
參數描述
DS21FT40N 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
DS21FT42 功能描述:網絡控制器與處理器 IC 4x4 16/4x3 12 Chnl T1/T1 Framer RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發(fā)器數量: 數據速率: 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
DS21FT42N 功能描述:網絡控制器與處理器 IC 4x4 16/4x3 12 Chnl T1/T1 Framer RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發(fā)器數量: 數據速率: 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
DS21FT44 功能描述:網絡控制器與處理器 IC RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發(fā)器數量: 數據速率: 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
DS21FT44+ 功能描述:網絡控制器與處理器 IC 4X3 E1 Framer E1 Framer E1 Framer RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發(fā)器數量: 數據速率: 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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