MT92220BG Zarlink Semiconductor, MT92220BG Datasheet - Page 15

• Manufacturer Part Number: MT92220BG
• Description: Description = 1023 Channel Voice Over IP/AAL2 Processor ;; Package Type = Epbga ;; No. Of Pins = 608
• Manufacturer: Zarlink Semiconductor

Data Sheet
1.0
The MT92220 device supports the following features:
1.1
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1.2
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Up to 1023 full-duplex PCM or ADPCM voice channels over IP/UDP/RTP connections or AAL2 VC
Up to 4096 HDLC channels carrying application data (UDP payload) converted to IP/UDP connections or
AAL2 VC
Simultaneous support of PCM, ADPCM and HDLC connections
Simultaneous support of IP/UDP connections and AAL2 VC in any combination
16-bit Intel/Motorola CPU Interface
Fully H.110 compliant TDM interface
Network Interface A: UTOPIA Level 1/2, POS-PHY Level 2 or MII
Network Interface B: UTOPIA Level 1
Full chip capacity can be achieved with two 18 bit data bus ZBT SSRAM, each ranging in size from 128K to
1M bytes; one 36 bit data bus ZBT SSRAM, ranging in size from 128K to 1M bytes; and two 16 bit data bus
SDRAM, each ranging in size from 8M to 16M bytes
Simultaneous Support of IP version 4 and 6, and of AAL2
Chip packages voice in RTP, UDP, and IP to support RFC791, RFC2460, RFC768, and RFC1889
Chip packages voice in AAL2 to support I.363.2 and I.366.2
IP packets can be sent over 3 different types of physical links (Ethernet, ATM, Packet over SONET)
RTP packaging is optional per connection
HDLC mini-packets are encapsulated in IP and UDP (RTP packaging performed by external agent); for
AAL2 VC, AAL2 header is inserted by MT92220 (but UUI can be inserted through HDLC control byte)
IP/UDP layers are optional and can be eliminated to reduce overhead (i.e., null encapsulation) in either ATM
AAL5 or Ethernet (using custom EtherType)
IP over AAL5 can be performed using Classical IP over ATM with SNAP/LLC headers or Ethernet LAN
Emulation (LANE) v1 or v2
Support of MPLS. On reception, MPLS label can be used to establish data format following it, as well as
logical subnet number and quality of service. MPLS multicast can be treated as unicast or routed to software
Support of MPOA. On reception, MPOA tag can be used to establish data format following it, as well as
logical subnet number and quality of service
Logical subnet number can be established using ATM header, MPLS flow header, MPOA tag or ELAN-ID in
LANE v2 header
Quality of service can be determined using ATM header, Ethernet user priority or IP Type Of Service (TOS)
Features
General Features
Data Formats
Zarlink Semiconductor Inc.
MT92220
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