hobbyist telephony chipset suggestions?

What is the kind of requirements you have w.r.t your project. That answer can shorten the search for the alternative chipset .

Karthik Balaguru

found

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Exactly those provided by BCM1111 :)

1. 300+ MHz CPU
2. DSP
3. TWO or more ethernet ports (MAC + PHY included preferable)
4. Analog telephony interface (High voltage + SLIC + codecs)
5. USB

Hope this list helps.

Thanks.

Interesting set of requirements !! But, i think, that many processors nowadays come up with these supports with them.

ARM926EJ-S has support used to optimize virtually any type of media processing. It reduces the clock cycles required to execute a typical voice encoder. It has many other features that you require. You can check out OMAP 59xx series of processors that are dual core ( ARM9 + C55x DSP ) and have DSP support also.

Karthik Balaguru

ARM926EJ-S was one of my earlier choices, and yes, it is has a juicy MH and DSP. However, the peripherals matter for me also, and this is where i is lacking, especially, the 2-port ethernet and analog telephony par (normally achieved via a Si3210 + Si3201).

Consider a Virtex4. You can instantiate two MACs on it, attach two PHYs (the eval board only has one, but I think there is a different EVB that already has two). You can have two PPC cores in it, or one core and whatever filters you want implemented in "hardware" in the FPGA.

Did you check DaVinci Processors from TI ? I find that there are many solutions available w.r.t it that support a broad portfolio (Broadband access equipments,VOIP,Videophones and so on), and hence should be having the necessary peripherals/support for you .

Karthik Balaguru