參數(shù)資料
型號(hào)： DS21Q348
廠商： DALLAS SEMICONDUCTOR
元件分類： Digital Transmission Interface
英文描述： DATACOM, PCM TRANSCEIVER, PBGA144
封裝： BGA-144
文件頁數(shù)： 18/67頁
文件大?。?/td> 339K
代理商： DS21Q348
DS21348/Q348
25 of 67
CCR3 (02H): COMMON CONTROL REGISTER 3
(MSB)
(LSB)
TUA1
ATUA1
TAOZ
TPRBSE
TLCE
LIRST
IBPV
IBE
SYMBOL
POSITION
NAME AND DESCRIPTION
TUA1
CCR3.7
Transmit Unframed All Ones. The polarity of this bit is set
such that the device will transmit an all ones pattern on power-
up or device reset. This bit must be set to a one to allow the
device to transmit data. The transmission of this data pattern is
always timed off of the JACLK (see Figure 3-1).
0 = transmit all ones at TTIP and TRING
1 = transmit data normally
ATUA1
CCR3.6
Automatic Transmit Unframed All Ones. Automatically
transmit an unframed all ones pattern at TTIP and TRING
during a receive carrier loss (RCL) condition.
0 = disabled
1 = enabled
TAOZ
CCR3.5
Transmit Alternate Ones and Zeros. Transmit a
…101010… pattern at TTIP and TRING. The transmission of
this data pattern is always timed off of TCLK (see Figure 3-1).
0 = disabled
1 = enabled
TPRBSE
CCR3.4
Transmit PRBS Enable. Transmit a 2
15 –1 (E1) or a 220-1
(T1) PRBS at TTIP and TRING.
0 = disabled
1 = enabled
TLCE
CCR3.3
Transmit Loop Code Enable. Enables the transmit side to
transmit the loop up code in the Transmit Code Definition
registers (TCD1 and TCD2). See Section 6 for details.
0 = disabled
1 = enabled
LIRST
CCR3.2
Line Interface Reset. Setting this bit from a zero to a one will
initiate an internal reset that resets the clock recovery state
machine and re-centers the jitter attenuator. Normally this bit is
only toggled on power-up. Must be cleared and set again for a
subsequent reset.
IBPV
CCR3.1
Insert BPV. A 0 to 1 transition on this bit will cause a single
BiPolar Violation (BPV) to be inserted into the transmit data
stream. Once this bit has been toggled from a 0 to a 1, the
device waits for the next occurrence of three consecutive ones
to insert the BPV. This bit must be cleared and set again for a
subsequent error to be inserted. See Figure 3-3.
IBE
CCR3.0
Insert Bit Error. A 0 to 1 transition on this bit will cause a
single logic error to be inserted into the transmit data stream.
This bit must be cleared and set again for a subsequent error to
be inserted. See Figure 3-3.
相關(guān)PDF資料
PDF描述
DS21352L DATACOM, PCM TRANSCEIVER, PQFP100
DS21352LN DATACOM, PCM TRANSCEIVER, PQFP100
DS21552L DATACOM, PCM TRANSCEIVER, PQFP100
DS21552LN DATACOM, PCM TRANSCEIVER, PQFP100
DS21354L DATACOM, PCM TRANSCEIVER, PQFP100
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS21Q348B 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
DS21Q348DK 功能描述:網(wǎng)絡(luò)開發(fā)工具 RoHS:否 制造商:Rabbit Semiconductor 產(chǎn)品:Development Kits 類型:Ethernet to Wi-Fi Bridges 工具用于評估:RCM6600W 數(shù)據(jù)速率:20 Mbps, 40 Mbps 接口類型:802.11 b/g, Ethernet 工作電源電壓:3.3 V
DS21Q348N 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
DS21Q348NB 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
DS21Q348-W 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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