MT92210 Zarlink Semiconductor, MT92210 Datasheet - Page 2

• Manufacturer Part Number: MT92210
• Description: 1023 Channel Voice Over ip (VoIP) Processor
• Manufacturer: Zarlink Semiconductor

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Applications
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Description
The MT92210 device is a voice over IP/RTP assembly and disassembly engine that can convert up to 1023 full-
duplex PCM voice channels or 4096 HDLC channels to IP packets and back, conforming to IETF RFC791 (IPv4),
RFC2460 (IPv6), RFC768 (UDP) and RFC1889 (RTP). On one side, the device communicates with an H.110 TDM
bus carrying voice in either PCM format, ADPCM or HDLC-encapsulated mini-packets; on the other side, it carries
its packet data over Ethernet, ATM (using AAL5 cells) or Packet over SONET. A 16-bit Intel/Motorola CPU interface
is used to access and configure the device. Finally, three external SSRAM banks and one external SDRAM bank
are used for configuration and storage space.
Conventions
In this document, the following conventions are used:
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High density voice gateway
Voice over IP
3G and UMTS
Network processor
IP switching
Voice over DSL/cable
The transmission direction and the abbreviation TX always refer to the direction in which voice is converted
into IP packets.
The reception direction and the abbreviation RX refer to the direction in which packets or cells are converted
into PCM bytes or HDLC packets.
All numbers in this document are decimal unless otherwise specified.
Hexadecimal number can be identified by the ‘h’ suffix (ex: A5h).
Binary numbers are either in double quotes for multiple bits or in single quotes for individual bits (ex: “1001”,
‘0’).
The term “byte” means 8 bits.
The term “word” means 16 bits.
The term “dword” means 32 bits.
The word “high” means a binary value of ‘1’.
The word “low” means a binary value of ‘0’.
The verb “to clear” means to reset one or multiple bits to ‘0’
The verb “to set” means to put one or multiple bits to ‘1’.
All addresses are specified in hexadecimal and point to bytes. Addresses are converted from bytes to words
to double words using the little endian format, unless otherwise specified.
Zarlink Semiconductor Inc.