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参数资料
| 型号： | DS21Q348 |
| 厂商： | DALLAS SEMICONDUCTOR |
| 元件分类： | Digital Transmission Interface |
| 英文描述： | DATACOM, PCM TRANSCEIVER, PBGA144 |
| 封装： | BGA-144 |
| 文件页数： | 18/67页 |
| 文件大小： | 339K |
| 代理商： | DS21Q348 |
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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.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS21Q348B | 功能描述:网络控制器与处理器 IC RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
| DS21Q348DK | 功能描述:网络开发工具 RoHS:否 制造商:Rabbit Semiconductor 产品:Development Kits 类型:Ethernet to Wi-Fi Bridges 工具用于评估:RCM6600W 数据速率:20 Mbps, 40 Mbps 接口类型:802.11 b/g, Ethernet 工作电源电压:3.3 V |
| DS21Q348N | 功能描述:网络控制器与处理器 IC RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
| DS21Q348NB | 功能描述:网络控制器与处理器 IC RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
| DS21Q348-W | 功能描述:网络控制器与处理器 IC RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
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