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參數(shù)資料
| 型號： | DS2154L |
| 英文描述： | Enhanced E1 Single Chip Transceiver |
| 中文描述： | 增強素E1單芯片收發(fā)器 |
| 文件頁數(shù)： | 51/87頁 |
| 文件大小： | 1106K |
| 代理商： | DS2154L |
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DS2154
51 of 87
8.0 PER-CHANNEL CODE GENERATION
The DS2154 can replace data on a channel-by-channel basis in both the transmit and receive directions.
The transmit direction is from the backplane to the E1 line and is covered in Section 8.1. The receive
direction is from the E1 line to the backplane and is covered in Section 8.2.
8.1 TRANSMIT SIDE CODE GENERATION
In the transmit direction there are two methods by which channel data from the backplane can be
overwritten with data generated by the DS2154. The first method which is covered in Section 8.1.1 was a
feature contained in the original DS2153 while the second method which is covered in Section 8.1.2 is a
new feature of the DS2154.
8.1.1 Simple Idle Code Insertion and Per-Channel Loopback
The first method involves using the Transmit Idle Registers (TIR1/2/3/4) to determine which of the 32 E1
channels should be overwritten with the code placed in the Transmit Idle Definition Register (TIDR).
This method allows the same 8-bit code to be placed into any of the 32 E1 channels. If this method is
used, then the CCR3.5 control bit must be set to 0.
The Transmit Idle Registers (TIRs) have an alternate function that allow them to define a Per-Channel
LoopBack (PCLB). If the CCR3.5 control bit is set to 1, then the TIRs will determine which channels (if
any) from the backplane should be replaced with the data from the receive side or in other words, off of
the E1 line. See Figure 1-1. If this mode is enabled, then transmit and receive clocks and frame syncs
must be synchronized. One method to accomplish this would be to tie RCLK to TCLK and RFSYNC to
TSYNC. There are no restrictions on which channels can be loopback or on how many channels can be
looped back.
相關PDF資料 |
PDF描述 |
|---|---|
| DS2154LN | Enhanced E1 Single Chip Transceiver |
| DS2154 | WSD 151 SOLDERING STATION 230V UKWSD 151 SOLDERING STATION 230V UK; Frequency, supply max:60Hz; Frequency, supply min:50Hz; Height:101mm; Length:166mm; Power, input:150W; Temperature range:50(degree C) - 550(degree C); Voltage, |
| DS2155 | T1/E1/J1 Single-Chip Transceiver TDM/UTOPIA II Interface |
| DS2156 | T1/E1/J1 Single-Chip Transceiver TDM/UTOPIA II Interface |
| DS2156L | T1/E1/J1 Single-Chip Transceiver TDM/UTOPIA II Interface |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DS2154L+ | 功能描述:網(wǎng)絡控制器與處理器 IC Enhanced E1 Transceiver 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 |
| DS2154LA2 | 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 |
| DS2154LA2+ | 功能描述:網(wǎng)絡控制器與處理器 IC Enhanced E1 Transceiver 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 |
| DS2154L-C01 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| DS2154LD1 | 功能描述:網(wǎng)絡控制器與處理器 IC Enhanced E1 Transceiver 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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