oo hardware (was: Why so few garage processors?)
Swan, Dean
Dean_Swan at Mitel.COM
Fri Mar 21 20:00:54 UTC 2003
Richard,
The NIOS is a synthesizable IP core for Altera FPGAs
i.e. It is simply a CPU that can be implemented on an FPGA.
There is no "NIOS chip" that is a hardwired CPU plus FPGA,
although there are a number of chips that fit this description.
The NIOS can be implemented on any sufficiently large Altera
FPGA.
Atmel has a device they call "FPSLIC" (Field Programmable
System Level Integrated Circuit) That includes a 20 MIPS AVR
RISC, 36K bytes of SRAM and up to 40K gates of programmable logic.
Xilinx has the Virtex II Pro FPGA which includes a 400 MHz
IBM PowerPC up to 10 Mbits of embedded block RAM, and a *lot*
of programmable logic resources. These are pretty expensive
though.
-Dean
> -----Original Message-----
> From: Richard A. O'Keefe [mailto:ok at cs.otago.ac.nz]
> Sent: Thursday, March 20, 2003 8:39 PM
> To: squeak-dev at lists.squeakfoundation.org
> Subject: Re: oo hardware (was: Why so few garage processors?)
>
>
> Alan wrote:
> ...
> So I would look at one of the
> modern processes that allows CPU and memory logic to be
> on the same
> die and try to make what is essentially an entire
> machine on that die
> (especially with regard to how processing, memories and
> switching
> relate).
>
> Has anyone looked at the NIOS processor? If I've understood
> correctly,
> it's a C-friendly RISC +plus+ on-chip FPGA, so you can have
> conventional
> code AND a rapidly-tweakable home-brew.
>
>
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