參數(shù)資料
型號： DS21FT42
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)： 36/145頁
文件大?。?/td> 466K
代理商： DS21FT42
DALLAS SEMICONDUCTOR
DS21FF42/DS21FT42
101899
/1236
FSBE
RCR2.1
PCVCR Fs–Bit Error Report Enable.
0 = do not report bit errors in Fs–bit position; only Ft bit position
1 = report bit errors in Fs–bit position as well as Ft bit position
Multiframe Out of Sync Count Register Function Select.
0 = count errors in the framing bit position
1 = count the number of multiframes out of sync
MOSCRF
RCR2.0
TCR1: TRANSMIT CONTROL REGISTER 1
(Address=35 Hex)
(MSB)
LOTCMC
(LSB)
TYEL
TFPT
TCPT
TSSE
GB7S
TFDLS
TBL
SYMBOL
POSITION
NAME AND DESCRIPTION
LOTCMC
TCR1.7
Loss Of Transmit Clock Mux Control.
Determines whether the
transmit side formatter should switch to RCLK if the TCLK input
should fail to transition (see Figure 6-1 for details).
0 = do not switch to RCLK if TCLK stops
1 = switch to RCLK if TCLK stops
Transmit F–Bit Pass Through.
(see note below)
0 = F bits sourced internally
1 = F bits sampled at TSER
Transmit CRC Pass Through.
(see note below)
0 = source CRC6 bits internally
1 = CRC6 bits sampled at TSER during F–bit time
Software Signaling Insertion Enable.
(see note below)
0 = no signaling is inserted in any channel
1 = signaling is inserted in all channels from the TS1-TS12 registers
(the TTR registers can be used to block insertion on a channel by
channel basis)
Global Bit 7 Stuffing.
(see note below)
0 = allow the TTR registers to determine which channels containing
all zeros are to be Bit 7 stuffed
1 = force Bit 7 stuffing in all zero byte channels regardless of how the
TTR registers are programmed
TFDL Register Select.
(see note below)
0 = source FDL or Fs bits from the internal TFDL register (legacy
FDL support mode)
1 = source FDL or Fs bits from the internal HDLC/BOC controller or
the TLINK pin
Transmit Blue Alarm.
(see note below)
0 = transmit data normally
1 = transmit an unframed all one’s code at TPOS and TNEG
Transmit Yellow Alarm.
(see note below)
0 = do not transmit yellow alarm
1 = transmit yellow alarm
TFPT
TCR1.6
TCPT
TCR1.5
TSSE
TCR1.4
GB7S
TCR1.3
TFDLS
TCR1.2
TBL
TCR1.1
TYEL
TCR1.0
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參數(shù)描述
DS21FT42N 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 4x4 16/4x3 12 Chnl T1/T1 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
DS21FT44 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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21FT44+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 4X3 E1 Framer E1 Framer 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
DS21FT44N 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 4x4 16/4x3 12 Chnl E1/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
DS21FT44N+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 4x4 16/4x3 12 Chnl E1/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
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