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参数资料
| 型号： | DS2141A |
| 厂商： | DALLAS SEMICONDUCTOR |
| 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： | 3/39页 |
| 文件大小： | 470K |
| 代理商： | DS2141A |
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DS2141A
11 of 39
CCR1: COMMON CONTROL REGISTER 1 (37h)
(MSB)
(LSB)
TESE
P34F
RSAO
-
SCLKM
RESE
PLB
LLB
SYMBOL
POSITION
NAME AND DESCRIPTION
TESE
CCR1.7
Transmit Elastic Store Enable.
0=elastic store is bypassed.
1=elastic store is enabled.
P34F
CCR1.6
Function of Pin 34.
0=Receive Loss of Sync (RLOS).
1=Loss of Transmit Clock (LOTC).
RSAO
CCR1.5
Receive Signaling All 1's.
0=allow robbed signaling bits to appear at RSER.
1=force all robbed signaling bits at RSER to 1.
-
CCR1.4
Not Assigned. Should be set to 0 when written to.
SCLKM
CCR1.3
SYSCLK Mode Select.
0=if SYSCLK is 1.544 MHz.
1=if SYSCLK is 2.048 MHz.
RESE
CCR1.2
Receive Elastic Store Enable.
0=elastic store is bypassed.
1=elastic store is enabled.
PLB
CCR1.1
Payload Loopback.
0=loopback disabled.
1=loopback enabled.
LLB
CCR1.0
Local Loopback.
0=loopback disabled.
1=loopback enabled.
PAYLOAD LOOPBACK
When CCR1.1 is set to a 1, the DS2141A will be forced into Payload LoopBack (PLB). Normally, this
loopback is only enabled when ESF framing is being performed. In a PLB situation, the DS2141A will
loop the 192 bits of payload data (with BPVs corrected) from the receive section back to the transmit
section. The FPS framing pattern, CRC6 calculation, and the FDL bits are not looped back, they are
reinserted by the DS2141A. When PLB is enabled, the following will occur:
1. Data will be transmitted from the TPOS and TNEG pins synchronous with RCLK instead of TCLK.
2. All of the receive side signals will continue to operate normally.
3. The TCHCLK and TCHBLK signals are forced low.
4. Data at the TSER pin is ignored.
5. The TLCLK signal will become synchronous with RCLK instead of TCLK.
相关PDF资料 |
PDF描述 |
|---|---|
| DS2143N | DATACOM, FRAMER, PDIP40 |
| DS2143QN | DATACOM, FRAMER, PQCC44 |
| DS2143Q | DATACOM, FRAMER, PQCC44 |
| DS2143 | DATACOM, FRAMER, PDIP40 |
| DS2148GN | DATACOM, PCM TRANSCEIVER, BGA49 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2141AN | 功能描述:网络控制器与处理器 IC T1 Controller w/Elastic Store 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 |
| DS2141AQ | 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 |
| DS2141AQ/T&R | 制造商:Maxim Integrated Products 功能描述:T1 CONTROL. W/ELAS.ST. 44-PLCC TRL - Tape and Reel 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:IC CONTROLLER T1 5V 44-PLCC |
| DS2141AQ/T&R+ | 制造商:Maxim Integrated Products 功能描述:T1 CNTRLR 44PLCC - Tape and Reel |
| DS2141AQ/T&R | 功能描述:网络控制器与处理器 IC T1 Controller w/Elastic Store 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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