26 Oct
2009
26 Oct
'09
10:05 p.m.
On Fri, Oct 2, 2009 at 4:07 PM, ron minnich rminnich@gmail.com wrote:
Maybe it is a difference in view. The address is 7 bits in all the docs. How it is laid out in the register and on the bits on the wire is really a different concern.
Sorry for the dead horse revival, but I was just looking at an SMBus spec today, and it reminded me that the specs I look at always seem to show the address left justified; 8 bits big.
See page 10 of this doc: http://www.atmel.com/dyn/resources/prod_documents/doc5226.pdf
or page 6 of this one: http://www.nxp.com/acrobat_download/datasheets/PCA9555_8.pdf
the documents show the register pictures like 0xAX, not 0x5X+1bit :)