參數(shù)資料
型號： MT8986
廠商： Mitel Networks Corporation
英文描述： Multiple Rate Digital Switch(多速率數(shù)字開關(guān))
中文描述： 多速率數(shù)字交換機(jī)（多速率數(shù)字開關(guān)）
文件頁數(shù)： 21/42頁
文件大小： 249K
代理商： MT8986
MT8986
2-83
throughput
applications, the MT8986 device allows cost effective
implementations of Non-Blocking matrices ranging
up to 1024 channels. Figures 12 and 13 show the
block diagram of implementations with Non-Blocking
capacities of 512 and 1024-channel, respectively.
delay
is
guaranteed.
For
such
Interfacing MT8986 with 8051
The Intel 8051 is a very cost effective solution for
many applications that do not require a large CPU
interaction and processing overhead. However, in
applications where 8051 is connected to peripherals
operating on a synchronous 8 kHz time-base like the
MT8986, some connectivity issues have to be
addressed. The MT8986 may hold the CPU read/
write cycle due to internal contention between the
MT8986 microport and the internal serial to parallel
and parallel to serial converters. Since the 8051
family of CPUs do not provide Data Ready type of
inputs,
some
external
intervention have to be provided between the
MT8986 and the 8051 microcontrollers to allow read/
write operation. The external logic described in
Figure 14 is a block diagram of a logical connection
between MT8986 and 8051. Its main function is to
store the 8051 data during a write and the MT8986
data during a read.
logic
and
software
For a write, MT8986 address is latched by the
internal address latch on the falling edge of the ALE
input. Whenever a read or write operation is done to
the MT8986 device, the address decoded signal
(MTA) is used to latch or "freeze" the state of RD,
WR, and the ALE signals, until the data acknow-
ledge output signal is provided by the MT8986
device, releasing the latches for a new read/write
cycle. Latch U5 is used to hold the 8051 data for a
write until the CPU is ready to accept it (when DTA
goes low). Latch U4 stores the MT8986 output data
Figure 12 - 512-Channel Non-Blocking Switch Matrix with Serial Streams at 2.048 or 4.096 Mb/s
Figure 13 - 1024-Channel Non-Blocking Switch Matrix with Serial Streams at 2.048 Mb/s
IN
OUT
16 Streams
@2.048 Mb/s
8 Streams
@2.048 Mb/s
8
8 Streams
@2.048 Mb/s
16
8
MT8986
MT8986
512 x 256
512 x 256
IN
OUT
8 Streams
@4.096 Mb/s
4 Streams
@4.096 Mb/s
4 Streams
@4.096 Mb/s
8
4
4
MT8986
MT8986
512 x 256
512 x 256
IN
IN
16 Streams
@2.048 Mb/s
16 Streams
@2.048 Mb/s
MT8986
512 x 256
MT8986
512 x 256
MT8986
512 x 256
MT8986
512 x 256
MT8986
512 x 256
MT8986
512 x 256
MT8986
512 x 256
MT8986
512 x 256
8 Streams
@2.048 Mb/s
8 Streams
@2.048 Mb/s
8 Streams
@2.048 Mb/s
8 Streams
@2.048 Mb/s
OUT
OUT
16
16
8
8
8
8
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MT8986AC 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:CMOS ST-BUS⑩ FAMILY Multiple Rate Digital Switch
MT8986AE 制造商:Microsemi Corporation 功能描述:
MT8986AE1 制造商:Microsemi Corporation 功能描述:PB FREE MULTIPLE RATE DIGITAL SWITCH 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 256 X 256/512 X 256/128 X 128 131.072MBPS 5V 40P - Rail/Tube 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC TDM/TSI SWITCH 512X256 40PDIP 制造商:Microsemi Corporation 功能描述:IC TDM/TSI SWITCH 512X256 40PDIP
MT8986AL 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 256 X 256/512 X 256/128 X 128 131.072MBPS 5V 44M - Trays 制造商:Zarlink Semiconductor Inc 功能描述:SWIT FABRIC 256 X 256/512 X 256/128 X 128 131.072MBPS 5V 44M - Trays
MT8986AL1 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 256 X 256/512 X 256/128 X 128 131.072MBPS 5V 44M - Trays 制造商:Zarlink Semiconductor Inc 功能描述:SWIT FABRIC 256 X 256/512 X 256/128 X 128 131.072MBPS 5V 44M - Trays
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