Simple I2C slave model (IO expander)

[Alex Ungerer]

I know that this has been asked for several times, but I haven't found
a satisfying answer yet.

Has anybody got a simple vhdl model for an I2C slave ? All I need is
to Read/Write some IO bits. I would like it to be as small as possible
(20-40 Xilinx CLBs or Altera LCELLs).

Thanks for your help,

Alex

 

[Paul Baxter]

Not exactly what you want but parts of the I2C core at www.opencores.org
might help you

"Alex Ungerer" <alex.ungerer@chauvin-arnoux.com> wrote in message
news:24a8d57b.0310030637.60355e74@posting.google.com...

I know that this has been asked for several times, but I haven't found
a satisfying answer yet.

Has anybody got a simple vhdl model for an I2C slave ? All I need is
to Read/Write some IO bits. I would like it to be as small as possible
(20-40 Xilinx CLBs or Altera LCELLs).

Thanks for your help,

Alex