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MSP4120
Multi-Service Processor
Product Status
Not recommended for new design.
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Features
GENERAL
The MSP4120 belongs to a family of Multi-Service Processors designed to meet the performance, QoS, and security needs of VoIP-enabled communications equipment used within the customer premise.
The MSP4120 provides a single platform for voice and data components of converged communications systems and is an excellent solution for VoIP-enabled router applications.
Together with PMC's Voice Processing Module firmware, the MSP4120 combines excellent datapath performance together with the exceptional voice quality that consumers are coming to expect of PSTN-replacement VoIP solutions.
Like all of the MSP processor family, the MSP4120 is based on the MS-BUS SoC platform which uses a 4.25 Gbit/s multimaster bus, 4 port bus switch, and 8 context-aware DMA engines to achieve exceptionally high datapath performance.
ADVANTAGES
- Single platform for both data and voice solutions
- Support for high performance VPNs
- Significant cost reduction through integration of multiple processors and discrete parts on a single chip
- Support for VxWorks and Linux
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PROCESSOR
- 170 MHz MIPS-32 core.
- 16 KB I-cache, 16 KB D-cache.
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VOICE ENGINE
- 110 MHz LSI ZSP400
- 160 KB on-chip SRAM
- 64 KB on-chip ROM
- 8 channel context-aware DMA engine
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TDM INTERFACE
- Glue-less interface to SLIC/SLACs
- 32 channel cross-connect with TDM-TDM and TDM to VoIP channel switching
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PERIPHERALS
- 133 MHz 32-bit SDRAM interface
- Dual 10/100 MACs with MII/RMII Interfaces
- PCI version 2.2 host interface
- External Local Bus interface
- Two UARTs
- SPI/MPI serial interface
- 2-wire serial
- 16 GPIO
- 2 external timer outputs
- EJTAG interface
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BUS ARCHITECTURE
- 32-bit, 133 MHz MS-BUS
- Multi-master, prioritized access
- 4.25 Gbit/s throughput
- 4 way bus-switch enables simultaneous transactions between bus sub-systems
- 8 channel system interupt controller
- 3 level priority queueing for each bus subsystem
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PERFORMANCE
- Clocked from a single 25 MHz crystal
- Packet throughput is approximately 30 kpkt/sec full duplex (IP packet forwarding at 800 byte packet size)
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ELECTRICAL & PACKAGE
- 3.3 V I/O, 1.8 V core.
- 289 CABGA.
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SOFTWARE
- VPM Voice Processing Firmware Suite
- Linux OS
- Hardware design kit
- Linux and VxWorks Software Development Kits also available
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Applications
- 2-4 port Analog Telephone Adapters
- Wired VoIP-enabled routers
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MSP4120 Multiservice Processor Product Brief [255 KB] PMC-2052185