參數(shù)資料
型號： DS2196
元件分類： 通信及網(wǎng)絡(luò)
英文描述： Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
中文描述： Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
文件頁數(shù)： 38/157頁
文件大小： 734K
代理商： DS2196
DS2196
38 of 157
Table 6-3:
TPOSB/TNEGB Data Source Select
TTDSS1
0
TTDSS0
0
Data Source
Pass tpos/tclk/tneg from the framer through to the
TPOSOB/TCLKOB/TNEGOB pins.
Force TPOSOB to source data from the BERT circuit. TNEGOB
is the frame sync pulse.
Force TPOSOB high. TNEGOB is the frame sync pulse.
Force TPOSOB and TNEGOB high.
0
1
1
1
0
1
Payload Loopback A
Payload Loopback When CCR1A.1 is set to a 1, the Framer/Formatter A will be forced into Payload
Loopback (PLB). Normally, this loopback is only enabled when ESF framing is being performed but can
be enabled also in D4 framing applications. In a PLB situation, the DS2196 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
DS2196. When PLB is enabled, the following will occur:
1.
The TCLKOA signal will become synchronous with RCLKA instead of TCLKA.
2.
Data will be transmitted from the TRING and TTIP pins synchronous with RCLKA instead of
TCLKA.
3.
All of the receive side signals will continue to operate normally.
4.
The TCHCLKA and TCHBLKA signals are forced low.
5.
TX serial data into Formatter A is ignored.
Payload Loopback B
When CCR1B.1 is set to a 1, the Framer/Formatter B will be forced into Payload Loopback (PLB).
Normally, this loopback is only enabled when ESF framing is being performed but can be enabled also in
D4 framing applications. In a PLB situation, the DS2196 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 DS2196. When PLB is
enabled, the following will occur:
1.
The TCLKOB signal will become synchronous with RCLKIB instead of TCLKB.
2.
Data will be transmitted from the TPOSOB and TNEGOB pins synchronous with RCLKIB instead of
TCLKB.
3.
All of the receive side signals will continue to operate normally.
4.
The TCHCLKB and TCHBLKB signals are forced low.
5.
TX serial data into Formatter B is ignored.
相關(guān)PDF資料
PDF描述
DS2196L Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
DS2196LN Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
DS21Q43AT Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
DS21Q43ATN Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
DS21Q44 Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS2196L 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:T1 Dual Framer LIU
DS2196LN 功能描述:網(wǎng)絡(luò)控制器與處理器 IC T1 Dual Framer LIU 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
DS2196LN+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC T1 Dual Framer LIU 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
DS219T 功能描述:烙鐵 DESOLDERING HEAD RoHS:否 制造商:Weller 產(chǎn)品:Soldering Stations 類型:Digital, Iron, Stand, Cleaner 瓦特:50 W 最大溫度:+ 850 F 電纜類型:US Cord Included
DS21E352 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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