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PM4328-PI 参数 Datasheet PDF下载

PM4328-PI图片预览
型号: PM4328-PI
PDF下载: 下载PDF文件 查看货源
内容描述: 高密度T1 / E1成帧器,集成M13多路复用器 [HIGH DENSITY T1/E1 FRAMER WITH INTEGRATED M13 MULTIPLEXER]
分类和应用: 复用器数字传输控制器电信集成电路电信电路异步传输模式ATM
文件页数/大小: 250 页 / 1399 K
品牌: PMC [ PMC-SIERRA, INC ]
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STANDARD PRODUCT  
PM4328 TECT3  
DATASHEET  
PMC-2011596  
ISSUE 1  
HIGH DENSITY T1/E1 FRAMER  
AND M13 MULTIPLEXER  
Framing and Bypass Options register. Finally, the transmitter can be by-passed  
completely to provide a clear channel operating mode.  
9.12 E1 Transmitter (E1-TRAN)  
The E1 Transmitter (E1-TRAN) generates a 2048 kbit/s data stream according to  
ITU-T recommendations, providing individual enables for frame generation, CRC  
multiframe generation, and channel associated signaling (CAS) multiframe  
generation.  
In concert with Transmit Per-Channel Serial Controller (TPSC), the E1-TRAN  
block provides per-timeslot control of idle code substitution, data inversion, digital  
milliwatt substitution, selection of the signaling source and CAS data. All  
timeslots can be forced into a trunk conditioning state (idle code substitution and  
signaling substitution) by use of the master trunk conditioning bit in the E1-TRAN  
Transmit Alarm/Diagnostic Control register.  
Common Channel Signaling (CCS) is supported in time slot 16 through the  
Transmit Channel Insertion (TXCI) block. Support is provided for the  
transmission of AIS and TS16 AIS, and the transmission of remote alarm (RAI)  
and remote multiframe alarm signals.  
The National Use bits (Sa-bits) can be sourced from the E1-TRAN National Bits  
Codeword registers as 4-bit codewords aligned to the submultiframe.  
Alternatively, the Sa-bits may individually carry data links sourced from the  
internal HDLC controller, or may be passed transparently from the ED[x] input.  
9.13 Transmit Per-Channel Serial Controller (TPSC)  
The Transmit Per-Channel Serial Controller allows data and signaling trunk  
conditioning or idle code to be applied on the transmit DS-1 stream on a per-  
channel basis. It also allows per-channel control of zero code suppression, data  
inversion, channel loopback (from the ingress stream), channel insertion, and the  
detection or generation of pseudo-random patterns.  
The TPSC interfaces directly to the E1-TRAN and T1-XBAS block and provides  
serial streams for signaling control, idle code data and egress data control.  
9.14 Signaling Aligner (SIGA)  
The Signaling Aligner is a block that is only applicable in T1 operating modes.  
When enabled, the Signaling Aligner is positioned in the egress path before the  
T1-XBAS. Its purpose is to ensure that if the signaling on ESIG[x] is changed in  
the middle of a superframe, the XBAS completes transmitting the A,B,C, and D  
PROPRIETARY AND CONFIDENTIAL  
68  
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