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型號(hào)：	PM73122-BI
廠商：	PMC-SIERRA INC
元件分類：	數(shù)字傳輸電路
英文描述：	32 LINK CES/DBCES AAL1 SAR PROCESSOR
中文描述：	ATM SEGMENTATION AND REASSEMBLY DEVICE, PBGA352
封裝：	35 X 35 MM, 1.51 MM HEIGHT, SBGA-352
文件頁(yè)數(shù)：	191/489頁(yè)
文件大小：	4416K
代理商：	PM73122-BI

PM73122 AAL1GATOR-32

32 LINK CES/DBCES AAL1 SAR PROCESSOR

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE

constant signaling for an entire multi-frame, then the multi-frame sync signal is

not required unless there is a desire to synchronize the multi-frame with the data

across the network. In general this is not necessary.

The AAL1gator-32 reads the signaling nibble for each channel when it reads the

last nibble of each channel’s data. See Figure 75 for an example of a T1 frame.

See Figure 76 for an example of an E1 frame.

Figure 75 Capture of T1 Signaling Bits

Line Signals During the Last Frame of a

XXXX - indicates signaling is

Figure 76 Capture of E1 Signaling Bits

XXXX - indicates signaling is ignored

Line Signals During the Last Frame of a Multiframe

AAL1gator-32 treats all 32 timeslots identically. Although E1 data streams

contain 30 timeslots of channel data, 1 timeslot of framing (timeslot 0) and one

time slot that can either be signaling or data (time slot 16), data and signaling for

all 32 timeslots are stored in memory and can be sent and received in cells.

11.6.3 Transmit Direction

In the line transmit direction, for structured data, the Line Interface Block may

take the TL_SYNC input signal and depending on the value of

MF_SYNC_MODE interpret the signal as either a frame pulse or multi-frame

pulse. Alternatively if GEN_SYNC in LIN_STR_MODE memory register is high

for that line, then the Line Interface Block will take the frame pulse or multi-

frame pulse generated by the A1SP Block for the local link and output that signal

to the TL_SYNC[n] pin on the external lines. Whether the Line Interface Block

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相關(guān)代理商/技術(shù)參數(shù)	參數(shù)描述
PM73122-BIP	制造商:PMC-Sierra 功能描述:AAL1GATOR32 EOL270906
PM73122-BI-P	制造商:PMC-Sierra 功能描述:
PM73123	制造商:PMC 制造商全稱:PMC 功能描述:8 Link CES/DBCES AAL1 SAR
PM73123PI	制造商:PMC-Sierra 功能描述:
PM73123-PI	制造商:PMC 制造商全稱:PMC 功能描述:8 LINK CES/DBCES AAL1 SAR

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