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參數(shù)資料
| 型號(hào)： | DS3134 |
| 英文描述： | Chateau Channelized T1 And E1 And HDLC Controller |
| 中文描述： | 不推薦用于新設(shè)計(jì) |
| 文件頁(yè)數(shù)： | 52/203頁(yè) |
| 文件大小： | 777K |
| 代理商： | DS3134 |
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DS3134
52 of 203
SECTION 5: LAYER ONE
5.1 GENERAL DESCRIPTION
The Layer One Block is shown in Figure 5.1A. Each of the 16 Layer One ports on the DS3134 can be
configured to support either a channelized application or an unchannelized application. Users can mix the
applications on the ports as needed. Some or all of the ports can be channelized while the others can be
configured as unchannelized. A channelized application is defined as one that requires a 8 kHz
synchronization pulse to subdivide the serial data stream into a set of 8-bit DS0 channels (also called
timeslots) which are Time Division Multiplexed (TDM) one after another. Ports running a channelized
application require an 8 kHz pulse at the RS and TS signals. An unchannelized application is defined as a
synchronous clock and data interface. No synchronization pulse is required and the RS and TS signals are
forced low in this application. Section 14 contains examples of some various configurations.
In channelized applications, the Layer One ports can be configured to operate in one of four modes as
shown in Table 5.1A below. Each port is capable of handling one, two, or four T1/E1 data streams.
When more than one T1/E1 data stream is applied to the port, the individual T1/E1 data streams must be
TDM into a single data stream at either a 4.096 MHz or 8.192 MHz data rate. Since the DS3134 can map
any HDLC channel to any DS0 channel, it can support any form (byte interleaved, frame interleaved, etc.)
of TDM that the application may require. On a DS0 by DS0 basis, the DS3134 can be configured to
process all 8 bits (64 kbps), the seven most significant bits (56 kbps), or no data.
CHANNELIZED PORT MODES
Table 5.1A
Mode
T1 (1.544 MHz)
E1 (2.048 MHz)
4.096 MHz
8.192 MHz
Description
N x 64 kbps or N x 56 kbps; where N = 1 to 24 (one T1 data stream)
N x 64 kbps or N x 56 kbps; where N = 1 to 32 (one T1 or E1 data stream)
N x 64 kbps or N x 56 kbps; where N = 1 to 64 (two T1 or E1 data streams)
N x 64 kbps or N x 56 kbps; where N = 1 to 128. (four T1 or E1 data streams)
Each port in the Layer One Block is connected to a Slow HDLC Engine. The Slow HDLC Engine is
capable of handling channelized applications at speeds up to 8.192 Mbps and unchannelized applications
at speeds of up to 10 Mbps. Ports 0 and 1 have the added capability of Fast HDLC Engines that are
capable of only handling unchannelized applications but at speeds of up to 52 MHz.
Each port has an associated Receive Port Control Register (RP[n]CR where n = 0 to 15) and a Transmit
Port Control Register (TP[n]CR where n = 0 to 15). These control registers are defined in detail in
Section 5.2 and they control all of the circuitry in the Layer One Block with the exception of the Layer
One State Machine which is shown in the center of the Block Diagram in Figure 5.1A.
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| DS3160 | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| DS3171 | Single/Dual/Triple/Quad DS3/E3 Single-Chip Transceivers |
| DS3171N | Single/Dual/Triple/Quad DS3/E3 Single-Chip Transceivers |
| DS3172 | Single/Dual/Triple/Quad DS3/E3 Single-Chip Transceivers |
| DS3172N | Single/Dual/Triple/Quad DS3/E3 Single-Chip Transceivers |
相關(guān)代理商/技術(shù)參數(shù) |
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| DS-313PIN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog Miscellaneous |
| DS-313-PIN | 功能描述:信號(hào)調(diào)節(jié) RoHS:否 制造商:EPCOS 產(chǎn)品:Duplexers 頻率:782 MHz, 751 MHz 頻率范圍: 電壓額定值: 帶寬: 阻抗:50 Ohms 端接類型:SMD/SMT 封裝 / 箱體:2.5 mm x 2 mm 工作溫度范圍:- 30 C to + 85 C 封裝:Reel |
| DS31400 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:8-Input, 14-Output, Dual DPLL Timing IC with Sub-ps Output Jitter |
| DS31400DK | 功能描述:時(shí)鐘和定時(shí)器開(kāi)發(fā)工具 DS31400 Dev Kit RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Modules 類型:Clock Conditioners 工具用于評(píng)估:LMK04100B 頻率:122.8 MHz 工作電源電壓:3.3 V |
| DS31400GN | 功能描述:計(jì)時(shí)器和支持產(chǎn)品 Not Available From Mouser RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時(shí)器數(shù)量:1 電源電壓-最大:18 V 電源電壓-最小:2.7 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel |
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