參數(shù)資料
型號(hào)： MT90871
廠商： Zarlink Semiconductor Inc.
英文描述： Flexible 8K Digital Switch (F8KDX)
中文描述： 靈活的8K的數(shù)字交換機(jī)（F8KDX）
文件頁(yè)數(shù)： 12/65頁(yè)
文件大小： 639K
代理商： MT90871
MT90871
Data Sheet
12
Zarlink Semiconductor Inc.
2.2.3.1
Backplane Output Port
The bit rate for each output stream is selected by writing to a dedicated Backplane Output Bit Rate Register
(BOBRR0-15). Refer to Table 44, Backplane Output Bit Rate Register (BOBRRn) Bits.
Operation of stream data in the Connection Mode or the Message Mode is determined by the state of the BMM
bit, and the channel High-impedance state is controlled by the BE bit of the Backplane Connection Memory.
The data source (i.e. from the Local or Backplane Data Memory) is determined by the BSRC bit of the
Backplane Connection Memory. Refer to section 6.2 "Backplane Connection Memory" and section 12.4
"Backplane Connection Memory Bit Definition".
Figure 7 - Backplane Port Timing Diagram for 2, 4, 8, and 16Mb/s stream rates
2.3
Backplane Frame Pulse Input and Master Input Clock Timing
The Backplane frame pulse (FP8i) is an 8kHz input signal active for 122ns or 244ns at the frame boundary. The
FPW bit in the Control Register must be set according to the applied pulse width. See
Pin Description
and
Table 13, Control Register Bits
, for details.
The active state and timing of FP8i may conform either to the ST-BUS or to the GCI-BUS as shown in Figure 6,
Local Port Timing Diagram for 2,4,8 and 16Mb/s stream rates, and Figure 7, Backplane Port Timing Diagram
for 2, 4, 8, and 16Mb/s stream rates. The MT90871 will automatically detect whether an ST-BUS or a GCI-BUS
style frame pulse is being used for the master frame pulse (FP8i). The active edge of the input clock (C8i) shall
be selected by the state of the Control Register bit C8IPOL. For the purposes of describing the device
FP8i (ST-BUS)
(8.192MHz)
7
2
3
4
5
6
1
0
0
BSTi/BSTo0-15
(16Mb/s) ST
1
2
3
4
5
6
1
0
7
Channel 255
Channel 0
C8i (GCI)
0
BSTi/BSTo0-15
(8Mb/s) GCI
Channel 0
3
7
6
Channel 127
5
4
(8kHz)
(8kHz)
FP8i (GCI)
7
BSTi/BSTo0-15
(4Mb/s) ST
Channel 0
6
0
1
Channel 63
7
1
2
7
0
0
(8.192MHz)
C8i (ST-BUS)
0
BSTi/BSTo0-15
(2Mb/s) GCI
Channel 0
7
Channel 31
0
7
0
5
4
3
2
1
6
7
7
BSTi/BSTo0-15
(16Mb/s) GCI
6
5
4
3
2
1
6
7
0
Channel 255
Channel 0
7
BSTi/BSTo0-15
(8Mb/s) ST
Channel 0
4
0
1
Channel 127
2
3
6
5
0
7
0
BSTi/BSTo0-15
(4Mb/s) GCI
Channel 0
1
7
6
Channel 63
0
7
7
BSTi/BSTo0-15
(2Mb/s) ST
Channel 0
0
Channel 31
7
0
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參數(shù)描述
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
MT90880 制造商:ZARLINK 制造商全稱(chēng):Zarlink Semiconductor Inc 功能描述:TDM to Packet Processors
MT90880B 制造商:ZARLINK 制造商全稱(chēng):Zarlink Semiconductor Inc 功能描述:TDM to Packet Processors
MT90880B/IG 制造商:ZARLINK 制造商全稱(chēng):Zarlink Semiconductor Inc 功能描述:TDM to Packet Processors
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