參數(shù)資料
型號: MT90221
廠商: Mitel Networks Corporation
英文描述: Quad IMA/UNI PHY Device(四端口 IMA/UNI 物理層設備(四端口ATM IMA和UNI處理器))
中文描述: 四IMA的/單向物理層設備(IMA的四端口/單向物理層設備(四端口自動柜員機IMA的和單向處理器))
文件頁數(shù): 40/116頁
文件大?。?/td> 309K
代理商: MT90221
MT90221
32
5.5
In UNI Mode, each Utopia port inside an MT90221
corresponds to a physical T1 or E1 line. Up to eight
PHY ports can be supported by one MT90221. Up to
eight MT90221 can be connected to a UTOPIA bus.
The ports in the same device represent only one
electrical load on the UTOPIA bus. The UTOPIA
Interface supports up to 31 PHY addresses so a
maximum of 31 PHY addresses are supported by the
MT90221.
UTOPIA Operation in UNI Mode
The MPHY address at the input port of MT90221
(TxAddr[4:0]) is used to store the cell in one specific
TX UTOPIA FIFO.
The MPHY address at the output port (RxAddr[4:0])
is used to retrieve the cells from the proper RX
UTOPIA FIFO.
5.6
In IMA mode, up to eight MT90221s, with up to four
UTOPIA ports each (one port per IMA Group), can
be served by an external UTOPIA L2 ATM-Layer
device. This provides up to 31 different logical IMA-
channels. Note that port 31 (1F in hexadecimal
format) is reserved.
UTOPIA Operation in IMA Mode
5.7
Examples of UTOPIA Operation Modes
Figure 15 shows the connection of one ATM Device
with one MT90221.
Figure 15 - ATM Interface to MT90221
Figure 16 shows the connection of one ATM Device
with more than one MT90221.
Figure 17 illustrates the implementation of a mixed
mode using only 1 MT90221. Links that are not used
for IMA Groups are available in UNI mode. Unused
links are programmed to set their outputs to high
impedance mode.
TxClk
TxEnb*
TxAddr
TxClav
TxData
TxSOC
RxEnb*
RxAddr
RxClav
RxData
RxSOC
Rxclk
ATM
MT90221
ATM Layer
Physical Layer
Framer
Framer
.
.
.
.
.
Figure 16 - ATM Interface to Multiple MT90221s
ATM
Txclk
TxEnb*
TxAddr
TxClav
TxData
TxSOC
Rxclk
RxEnb*
RxAddr
RxClav
RxData
RxSOC
MT90221
Framer
Framer
ATM Layer
Physical Layer
Txclk
TxEnb*
TxAddr
TxClav
TxData
TxSOC
Rxclk
RxEnb*
RxAddr
RxClav
RxData
RxSOC
MT90221
Framer
Framer
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相關代理商/技術參數(shù)
參數(shù)描述
MT90221AL 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Quad IMA/UNI PHY Device
MT90222 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:4/8/16 Port IMA/TC PHY Device
MT90222AG 制造商:Microsemi Corporation 功能描述:ATM IMA 40MBPS 2.5V 384BGA - Trays
MT90222AG2 制造商:Microsemi Corporation 功能描述:ATM IMA 40MBPS 2.5V 384BGA /BAKE/DRYPACK - Trays
MT90223AG 制造商:Microsemi Corporation 功能描述:ATM IMA 80MBPS 2.5V 384BGA - Trays