Download Voice Access Processor M80320

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A CONEXANT BUSINESS
Voice Access Processor
M80320
The M80320 voice access processor from Mindspeed
>
Technologies™ provides a complete solution for trans-
K E Y F E AT U R E S
> 24 channels of low complexity
voice (G.711)
porting multiple media types between circuit-switched
> Fax over IP (T.38)
and packet-based networks. The M80320 is ideally suited
> 12 channels of high complexity
voice processing (G.723, G.726,
G.729)
for enterprise solutions serving the converging voice and
data networks.
> Speech processing: G.168 EC,
jitter buffer, VAD, DTMF
detection/generation
Mindspeed’s M80320 supports a rich feature set of Voice
over Internet Protocol (VoIP) encapsulation and Voice
> Modem over IP (V.MoIP: modem
relay and modem pass-through)
> Complete packet processing
for Voice over IP and ATM
> Compact 17 mm, 256 ball BGA
with 1 mm ball pitch
over Asynchronous Transfer Mode (VoATM) cell generation. Additionally, the M80320 addresses requirements
such as modem and fax over IP (V.MoIP and T.38).
Applications include small and midrange voice terminating
routers, IP PBXs, WAN access devices, low density Remote
The M80320 combines powerful DSP cores with a
Access Concentrators (RAC), voice gateways, call agents,
programmable packet-processing ARM™ controller.
This processor is offered as a complete software solution, running Mindspeed’s extensive suite of field-proven
and various other products benefiting from a complete
voice access system solution.
data and fax modulations, voice echo cancellers and
general telecommunications protocols, providing
complete IP packets or ATM cells.
PCI
33 MHz
TDM I/F
32-bit
PACKET I/F
ARM™
CONTROLLER
TDM
8 MHz
DSP
CORES
Hardware Architecture
>
Product Features
Generic
Voice
Packet Processing
Signaling
• 24 channels of low complexity voice
(G.711)
• G.165/G.168 128 ms Network
Echo Canceller
Voice over IP
• DTMF detection and generation
• 12 channels of high complexity voice
(G.723, G.726, G.729,T.38, V.MoIP)
• G.711 µ-Law and A-Law
• Generation and Termination of
complete IP packet
• G.723.1 and G.723.1 Annex A
• Support of Real Time Protocol (RTP)
• Multi-frequency tone support
for legacy network equipment
(R1 and R2)
• Low voltage operation with +5V
tolerant inputs
• G.726
• Support of User Datagram Protocol
(UDP)
• Downloadable controller firmware
and DSP code
• Patented robust jitter buffer
• G.729 Annex A and Annex B
• Advanced RISC Machines (ARM940T)
controller cores
• 32-bit, 33 MHz PCI Host Bus interface or 8.192 MHz TDM Serial Host
Bus interface
• Programmable TDM bus with time
slot selection and support for
multiple time slots per channel
• Additional voice codecs available
Modem and Fax over IP
• Modem pass-through including V.90
• lookup functions, packet generation
and termination
• DTMF digits can be detected and
transported
• Support of RTCP
• V.MoIP, modem relay (up to V.92)
Voice over ATM
• T.38 real time fax
• Generation and Termination of
ATM Cells
• Support of ATM Adaptation Layer 2
• Built-in phase lock loop (PLL)
• Compliant with ITU-T I.363.2, I.366.1
and I.366.2
• PC100- and JEDEC–compliant
SDRAM controller with
32-bit data bus
Software Architecture
Packet Protocol
Call Type
DTMF/Tone
Detection
Voice Over IP
Voice
Voice Over ATM
Fax and Modem Relay
G.726 Enc.
G.729 Enc.
Decompression
IP Bus
TCP
IP
RTP Decap.
UDP
AAL2 Decap.
Compression
Adaptive
Jitter
Buffer
T.38
V.22 Demod.
VFC Mod.
V.90 Mod.
V.92 Mod.
G.711 Dec.
G.711
Linear
to u/A
TDM BUS (e.g.T1/E1 framing)
FIFOs &
Mailbox
Registers
G.711
u/A to
Linear
Slot Assignment Selector
V.90 Demod.
V.34 Demod.
VFC Demod.
T.38
Packet/Cell
Network
PPI
G.711 Enc.
V.92 Demod.
Speech driven (G.165/8) Echo Canceller
RTP Encap
Data driven Echo Canceller
ATM CELL
SAR
G.723.1 Enc.
AAL2 Encap.
TDM
Network
G.723.1 Dec.
G.729 Dec.
G.726 Dec.
DTMF/Tone
Generation
www.mindspeed.com/salesoffices
General Information:
Headquarters – Newport Beach
4000 MacArthur Blvd., East Tower
Newport Beach, CA 92660-3007
Order# 500302A M01-0631
© 2001 Mindspeed Technologies™, a Conexant business. All rights reserved. Mindspeed
and the Mindspeed logo are trademarks of Mindspeed Technologies. All other
trademarks are the property of their respective owners. Although Mindspeed
Technologies strives for accuracy in all its publications, this material may contain
errors or omissions and is subject to change without notice. This material is provided
as is and without any express or implied warranties, including merchantability, fitness
for a particular purpose and non-infringement. Mindspeed Technologies shall not be
liable for any special, indirect, incidental or consequential damages as a result of its use.
™6
A CONEXANT BUSINESS