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| 型號(hào)： | PEF82912F |
| 英文描述： | ?2B1Q Second Generation Modular ISDN NT (Intelligent)? |
| 中文描述： | ？2B1Q第二代模塊化綜合業(yè)務(wù)數(shù)字網(wǎng)新臺(tái)幣（智能）？ |
| 文件頁(yè)數(shù)： | 53/205頁(yè) |
| 文件大小： | 3205K |
| 代理商： | PEF82912F |
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PEF 82902
Functional Description
Data Sheet
41
2001-11-09
Figure 19
shows three examples for the generation of a strobe signal. In example 1 the
SDS is active during channel B2 on IOM -2, whereas in the second example during IC2
and MON1. The third example shows a strobe signal for 2B+D channels which is used
e.g. at an IDSL (144 kbit/s) transmission.
2.3.3
IOM -2 Monitor Channel
The IOM -2 MONITOR channel is utilized for information exchange between the T-
SMINT I and other devices in the MONITOR channel.
The MONTIOR channel data can be controlled by the bits in the MONITOR control
register (MON_CR). For the transmission of the MONITOR data one of the 3 IOM -2
channels can be selected by setting the MONITOR channel selection bits (MCS) in the
MONITOR control register (MON_CR).
The DPS bit in the same register selects between an output on DU or DD respectively
and with EN_MON the MONITOR data can be enabled/disabled. The default value is
MONITOR channel 0 (MON0) enabled and transmission on DD.
The MONITOR channel of the T-SMINT I can be used in the following applications (refer
also to and ):
As a
master device
the T-SMINT I can program and control other devices (e.g. PSB
2161) attached to the IOM -2, which therefore, do not need a microcontroller
interface.
As a
slave device
the T-SMINT I is programmed and controlled from a master device
on IOM -2 (e.g. UTAH). This is used in applications where no microcontroller is
connected directly to the T-SMINT I.
The MONITOR channel operates according to the IOM -2 Reference Guide [12].
Note: In contrast to the NTC-T, the T-SMINT I does neither issue nor react on Monitor
commands (MON0,1,2,8). Instead, the T-SMINT I operated in IOM -2 slave
mode must be programmed via new MONITOR channel concept (see
Chapter 2.3.3.4
), which provides full register access. The Monitor time out
procedure is available. Reporting of the T-SMINT I is performed via interrupts.
2.3.3.1
Handshake Procedure
The MONITOR channel operates on an asynchronous basis. While data transfers on the
bus take place synchronized to frame sync, the flow of data is controlled by a handshake
procedure using the MONITOR Channel Receive (MR) and MONITOR Channel
Transmit (MX) bits. Data is placed onto the MONITOR channel and the MX bit is
activated. This data will be transmitted once per 8-kHz frame until the transfer is
acknowledged via the MR bit.
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PDF描述 |
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| PEF82913F | ?2B1Q Second Generation Modular ISDN NT (Intelligent)? |
| PEF82912H | Low Cost Dual and Quad Video Amplifiers; Package: SO; No of Pins: 14; Temperature Range: 0°C to +70°C |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| PEF82912FV1.4 | 功能描述:ISDN 接口 ISDN RoHS:否 制造商:Texas Instruments 封裝:Tube |
| PEF82912FV14XP | 制造商:Lantiq 功能描述:ISDN S/T/U HDLC Interface 1-Line 192Kbps 3.3V 64-Pin MQFP |
| PEF82912FV14XT | 制造商:Lantiq 功能描述:Q-SMINTI |
| PEF82912H | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:?2B1Q Second Generation Modular ISDN NT (Intelligent)? |
| PEF82912HV1.4 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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