On Mon, Jan 21, 2008 at 01:42:21PM -0700, Marc Jones wrote: > I looked at the smbus spec (it is public) and didn't see anything about > 10bit address. > http://smbus.org/specs/ > > "SMBus addresses are 7 binary > bits long and are conventionally expressed as 4 bits followed by 3 bits > followed by the letter ‘b’, for > example, 0001 110b. These addresses occupy the high seven bits of an > eight-bit field on the bus. The low > bit of this field, however, has other semantic meaning that is not part > of an SMBus address"
The I2C spec has an optional 10bit addresing feature. I2C is similar (and mostly compatible) but not identical to SMBus; I'm not sure if the 10 bit addressing is available in SMBus. Uwe. -- http://www.hermann-uwe.de | http://www.holsham-traders.de http://www.crazy-hacks.org | http://www.unmaintained-free-software.org -- coreboot mailing list coreboot@coreboot.org http://www.coreboot.org/mailman/listinfo/coreboot