MT90880B ZARLINK [Zarlink Semiconductor Inc], MT90880B Datasheet - Page 2

• Manufacturer Part Number: MT90880B
• Description: TDM to Packet Processors
• Manufacturer: ZARLINK [Zarlink Semiconductor Inc]

Description
The MT9088x is a family of highly functional TDM to Packet bridging devices. It provides a bridge between a WAN
environment based on constant bit rate TDM streams and a packet domain based on Ethernet technology.
It is capable of assembling user-defined packets of TDM traffic from the WAN Access Interface and transmitting
them from the Ethernet interfaces using a variety of protocols. If external processing is required (e.g., HDLC or
modem termination) the traffic can be switched to a local interface using the internal TDM switch.
Packets received from the Ethernet interfaces are parsed to determine the egress destination, and are
appropriately queued either to the WAN Access Interface or to the PCI interface. An integrated DMA controller is
used to transfer packets to and from the PCI interface with a minimum of CPU intervention.
Variants
There are four device variants in the MT9088x family:
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•
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Related Documents
This data sheet should be read in conjunction with the following related documents and application notes:
No. of WAN streams
Local Port
No. of Available Channels
TDM Switch Availability
PCI Interface
MII Interface
RMII Interface
JTAG
1. MT9088x Programmers Model
2. MT9088x API User Guide
3. MSAN-198 - Performing Clock Recovery for Circuit
4. MSAN-199 - Unstructured Circuit Emulation Using the
MT90880
5. MSAN-200 - MT90880 TDM Replacement Packet
Backplane
MT908801024 bi-directional channels, integral TDM switch
MT908811024 bi-directional channels, no TDM switch
MT90882256 bi-directional channels, integral TDM switch
MT90883256 bi-directional channels, no TDM switch
Emulation when using the MT90880
Feature
Title
Master mode only
33 / 66 MHz
MT90880
1024
Yes
Yes
Yes
Yes
32
Table 2 - Related Documents
Table 1 - Variant Options
Zarlink Semiconductor Inc.
MT90880/1/2/3
Not Available
33 / 66 MHz
MT90881
2
1024
Yes
Yes
Yes
No
32
Author
Zarlink
Zarlink
Zarlink
Zarlink
Zarlink
Master mode only
33 / 66 MHz
MT90882
Yes
256
Yes
Yes
Yes
8
Document
Number
DM5708
DM5805
AN5789
AN5790
AN5791
Not Available
33 / 66 MHz
MT90883
1.0, Sept. 2002
1.0, Aug. 2002
256
Yes
Yes
Yes
1, Aug. 2002
1, Aug. 2002
1, Aug. 2002
Issue / Date
No
8
Data Sheet