Re: Interface Buses

> so we can have up to 32 slave
> devices on the SPI bus while
> only using 8 pins of a mega128.

Hi,

Just a thought: use the SPI bus, and then connect a
shift register up for the address. If you needed lots
of devices and/or to save port pins, you could use an
8-bit shift register (or higher) that connects to the
device addresses, and that would only take up two port
pins for the shift register.

 -Colin