Any good reference works on serial buses?

[chthon]

Hi all,

I would like to understand and experiment with serial buses and protocols inside an FPGA (like AXI). Is there any reference work that you can recommend?

Regards,

Jurgen

 

[Tim Wescott]

On Wed, 02 Apr 2014 22:50:05 -0700, chthon wrote:

Hi all,

I would like to understand and experiment with serial buses and
protocols inside an FPGA (like AXI). Is there any reference work that
you can recommend?

Regards,

Jurgen

Asynchronous and SPI are dead easy -- any UART data sheet will pretty
much give you all you need to know for asynchronous, and the data sheet
for any SPI block in a microcontroller will give you what you need for
SPI.

I2C is harder, but can be fairly easily bit-banged in a microprocessor,
if you don't mind going slow.

CAN is harder yet -- you're into "buying IP is better" territory, unless
you have some serious sales volume. Ditto USB, although I know of some
bit-banged USB examples on microprocessors (bit-banging USB is kind of my
personal gold standard for easy -- if a hobbyist can bit-bang it, then it
should be easy for you, unless they're ignoring all sorts of corners in
the "real" spec).

--

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com