參數(shù)資料
型號(hào)： MT90870
廠商： Zarlink Semiconductor Inc.
英文描述： Flexible 12 k Digital Switch (F12kDX)
中文描述： 靈活的12畝數(shù)字交換機(jī)（F12kDX）
文件頁(yè)數(shù)： 41/86頁(yè)
文件大?。?/td> 2093K
代理商： MT90870
MT90870
Data Sheet
41
Zarlink Semiconductor Inc.
5.0 Data Delay Through the Switching Paths
For all data rates, the received serial data is converted to parallel format and stored sequentially in the data
memory. Each data memory location corresponds to an input stream and channel number. To provide constant
delay and maintain frame integrity, the MT90870 utilizes four pages of data memory. Consecutive frames are
written in turn to each page of memory. Reading is controlled to allow a channel data written in frame N to be read
during frame N+3.
A constant delay of three frames is applied to all switching paths irrespective of data-rate or channel number. See
Figure 16.
Figure 16 - Constant Switch Delay: Examples of Different Stream Rates and Routing
CH
254
CH
0
CH
1
CH
254
CH
255
CH
254
CH
255
CH
0
CH
1
CH
0
CH
1
CH
255
BSTi0
(16 Mb/s)
FP8o
CH
254
CH
0
CH
1
CH
254
CH
255
CH
254
CH
255
CH
0
CH
1
CH
0
CH
1
CH
255
BSTo1
(16 Mb/s)
Frame N
Frame N+3
Frame N+4
CH
0
CH
127
CH
127
CH
0
CH
0
CH
127
BSTi0
(8 Mb/s)
CH
0
CH
127
CH
127
CH
0
CH
0
CH
127
LSTo1
(8 Mb/s)
CH
0
CH
127
CH
127
CH
0
CH
0
CH
127
LSTi0
(8 Mb/s)
0
63
63
0
CH
0
63
BSTo1
(4 Mb/s)
CH
0
CH
127
CH
127
CH
0
CH
0
CH
127
LSTi0
(8 Mb/s)
CH
0
CH
31
CH
31
CH
0
CH
0
CH
31
LSTo1
(2 Mb/s)
C
H
C
H
BSTi0
(32 Mb/s)
CH
254
CH
0
CH
1
CH
254
CH
255
CH
254
CH
255
CH
0
CH
1
CH
0
CH
1
CH
255
LSTo1
(16 Mb/s)
C
H
C
H
C
H
C
H
C
H
C
H
C
H
C
H
C
H
C
H
C
H
C
H
C
H
C
H
C
H
C
H
C
H
C
H
C
H
C
H
C
H
C
H
511
0
Example showing 32 Mb/s mode, Backplane to Local switching
Example showing Local to Local switching
Example showing Local to Backplane switching
Example showing Backplane to Local switching
Example showing Backplane to Backplane switching
Frames N+1 and N+2
相關(guān)PDF資料
PDF描述
MT90871AV Flexible 8K Digital Switch (F8KDX)
MT90871 Flexible 8K Digital Switch (F8KDX)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MT90870AG 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 12K X 12K/8K X 4K 1.8V/3.3V 272BGA - Trays
MT90870AG2 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 12K X 12K/8K X 4K 1.8V/3.3V 272BGA - Trays
MT90871 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Flexible 8K Digital Switch (F8KDX)
MT90871AV 制造商:Microsemi Corporation 功能描述:FLEXIBLE 8K DIGITAL SWITCH 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC DGTL SWITCH F8KDX 196PBGA 制造商:Microsemi Corporation 功能描述:IC DGTL SWITCH F8KDX 196PBGA
MT90871AV2 制造商:Microsemi Corporation 功能描述:PB FREE FLEXIBLE 8K DIGITAL SWITCH - Bulk 制造商:Microsemi Corporation 功能描述:IC, TDM SWITCH 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC DGTL SWITCH F8KDX 196PBGA 制造商:Microsemi Corporation 功能描述:IC DGTL SWITCH F8KDX 196PBGA
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