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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  
the output signaling for the entire superframe in which the slip occurred; the  
signaling is unfrozen when the next slip-free superframe occurs.  
The SIGX also provides control over timeslot signaling bit fixing, data inversion  
and signaling debounce on a per-timeslot basis.  
The SIGX block also provides an interrupt to indicate a change of signaling state  
on a per channel basis.  
9.10 Receive Per-Channel Serial Controller (RPSC)  
The RPSC allows data and signaling trunk conditioning to be applied on the  
ingress stream on a per-channel basis. It also allows per-channel control of data  
inversion, the extraction of clock and data on ICLK[x] and ID[x] (when the Clock  
Master: NxChannel mode is active), and the detection or generation of pseudo-  
random patterns. The RPSC operates on the data after its passage through  
ELST, so that data and signaling conditioning may overwrite the ELST trouble  
code.  
9.11 Basic Transmitter (XBAS)  
The T1 Basic Transmitter (XBAS) block generates the 1.544 Mbit/s T1 data  
stream according to SF or ESF frame formats.  
In concert with the Transmit Per-Channel Serial Controller (TPSC), the XBAS  
block, provides per-channel control of idle code substitution, data inversion  
(either all 8 bits, sign bit magnitude or magnitude only), and zero code  
suppression. Three types of zero code suppression (GTE, Bell and "jammed bit  
8") are supported and selected on a per-channel basis to provide minimum ones  
density control. An internal signaling control stream provides per-channel control  
of robbed bit signaling and selection of the signaling source. All channels can be  
forced into a trunk conditioning state (idle code substitution and signaling  
conditioning) by use of the Master Trunk Conditioning (MTRK) bit in the T1-XBAS  
Configuration Register.  
A data link is provided for ESF mode. The data link sources include bit oriented  
codes and HDLC messages. Support is provided for the transmission of AIS or  
Yellow alarm signals for all formats.  
The transmitter can be disabled for framing via the FDIS disable bit in the T1/E1  
Transmit Framing and Bypass Options register. When transmitting ESF  
formatted data, the framing bit, datalink bit, or the CRC-6 bit from the egress  
stream can be by-passed to the output data stream via the same T1/E1 Transmit  
PROPRIETARY AND CONFIDENTIAL  
67  
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