In the name of GOD

Home Page of

Ehsan Kh. Ardestani Zadeh

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Under Construction...

 

VoIP Processor Group

In this project we involved novel aspects of SoC, SW/HW co-design and Reconfigurable Architecture. In our project, we developed a MIPS-like processors boosted with a programmable coprocessor beside the main pipeline and an Application Specific Extension (ASE) instruction set to perform required compute-intensive VoCoding algorithms as fast as possible. In addition we have designed a general purpuse embedded processor, named TMIPS, to run RTOS and protocol stack (Formerly, we were using LOEN2 processor). Beside the mentioned embedded processors, we have other hardware modules, such as MAC, Frame buffer and PCI which all of them are connected by a communication network based on AMBA AHB from ARM. We have used several FPGAs during our development and design phase for prototyping. In the first fabrication, we plan only for 8 voice channel. Our processor can be used in residential gateways. This project is directed by Dr. Mehdi Sedighi.

There are several IP cores developed by this group as a product:

bulletA powerful MIPS-based Audio signal processor (RASP)
bulletOptimized for G.723, G.729AB and G.716 Voice CODECs.
bulletTMIPS embedded processor (In progress, Beta version has just released.)
bullet2 independent caches for instruction and data
bulletFixed-mapping MMU
bulletInterrupt Vector Controller
bulletExternal memory controller capable of handling SRAM, SDRAM, PROM and Flash memory.
bulletPCI IP Core.
bullet33-bit, 33 MHz,
bulletSupports Bus Mastering
bulletPCI 2.2 compliant
bulletAMBA AHB IP Core.
bulletEthernet MAC IP Core
bulletE1 Framer, and etc!

 

My current engagement:

At the moment, I am engaged with

    - porting eCos on TMIPS,

    - Setting up an IP-trunk on-line demo to verify the VoIP processor (DONE).

    - Post synthesis simulation and Regression Test.

 

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Last updated: 15/Dec/2006.