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参数资料
| 型号： | DS2180AN |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | Digital Transmission Controller |
| 英文描述： | DATACOM, FRAMER, PDIP40 |
| 封装： | 0.600 INCH, DIP-40 |
| 文件页数： | 34/35页 |
| 文件大小： | 481K |
| 代理商： | DS2180AN |
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DS2180A
8 of 35
B8ZS
The DS2180A supports existing and emerging zero suppression formats. Selection of B8ZS coding
maintains system 1’s density requirements without disturbing data integrity as required in emerging clear
channel applications. B8ZS coding replaces eight consecutive outgoing 0's with a B8ZS code word. Any
received B8ZS code word is replaced with all 0’s. B8ZS and bit 7 stuffing modes should not be enabled
simultaneously. Enabling both results in LOS.
TCR: TRANSMIT CONTROL REGISTER Figure 5
(MSB)
(LSB)
ODF
TFPT
TCP
RBSE
TIS
193SI
TBL
TYEL
SYMBOL
POSITION
NAME AND DESCRIPTION
ODF
TCR.7
Output Data Format.
0 = Bipolar data at TPOS and TNEG.
1 = NRZ data at TPOS; TNEG=0.
TFPT
TCR.6
Transmit Framing Pass-through.
0 = FT/FPS sourced internally.
1 = FT/FPS sampled at TSER during F-bit time.
TCP
TCR.5
Transmit CRC Pass-through.
0 = Transmit CRC code internally generated.
1 = TSER sampled at CRC F-bit time for external CRC insertion.
RBSE
TCR.4
Robbed Bit Signaling Enable.
1 = Signaling inserted in all channels during signaling frames.
0 = No signaling inserted. (The TTR registers allow the user to
disable signaling insertion on selected DS0 channels.)
TIS
TCR.3
Transmit Idle Code Select. Determines idle code format to be
inserted into channels marked by the TIR registers.
0 = Insert 7F (Hex) into marked channels.
1 = Insert FF (Hex) into marked channels.
193SI
TCR.2
193S S-bit Insertion. Determines source of transmitted S-bit.
0 = Internal S-bit generator.
1 = External (sampled at TLINK input).
TBL
TCR.1
Transmit Blue Alarm.
0 = Disabled.
1 = Enabled.
TYEL
TCR.0
TYEL TCR.0 Transmit Yellow Alarm.
0 = Disabled.
1 = Enabled.
TRANSMIT BLUE ALARM
The blue alarm (also known as the AIS, Alarm Indication Signal) is an unframed, all 1’s sequence
enabled by asserting TCR.1. Blue alarm overrides all other transmit data patterns and is disabled by
clearing TCR.1. Use of the TIR registers allows a framed, all 1’s alarm transmission if required by the
network.
TRANSMIT YELLOW ALARM
In 193E framing, a yellow alarm is a repeating pattern set of FF(Hex) and 00 (Hex) on the 4 kHz facility
data link (FDL). In 193S framing the yellow alarm format is dependent on the state of bit CCR.3. In all
modes, yellow alarm is enabled by asserting TCR.0 and disabled by clearing TCR.0.
相关PDF资料 |
PDF描述 |
|---|---|
| DS2181AN | DATACOM, FRAMER, PDIP40 |
| DS2181AQN | DATACOM, FRAMER, PQCC44 |
| DS2181A | DATACOM, FRAMER, PDIP40 |
| DS2181AQ | DATACOM, FRAMER, PQCC44 |
| DS2182A | DATACOM, FRAMER, PDIP28 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2180AQ | 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 |
| DS2180AQ/T&R | 制造商:Maxim Integrated Products 功能描述:T1 TRANSCEIVER-PLCC-TRL - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC TRANSCEIVER T1 44-PLCC 制造商:Maxim Integrated Products 功能描述:Network Controller & Processor ICs T1 Transceiver |
| DS2180AQ/T&R+ | 制造商:Maxim Integrated Products 功能描述:T1 TRANSCEIVER PLCC TRL LF - Tape and Reel |
| DS2180AQ/T&R | 功能描述:网络控制器与处理器 IC T1 Transceiver 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 |
| DS2180AQ+ | 功能描述:网络控制器与处理器 IC T1 Transceiver 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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