>I'm confused :-).
>I can't see how this could be "7 bit" addressing but if that's how someone
>has defined it I am happy.

Check the Philips I2C spec document. The 7 bit addressing refers to the
first byte sent after the start condition. On a specific address in this
field a second address byte is sent which is also related to hardware
addressing, and between the two bytes can have a maximum 10 bit address.

Most EPROM's I have seen use the 7 bit address scheme with 4 bits fixed, and
3 bits strapped by external pins to allow a maximum of 8 EPROM's as you
describe. The 0HHHHHHH LLLLLLLL bytes you describe are data bytes, not
address bytes as far as the I2C spec goes, but are used within the EPROM as
an internal address, and have nothing to do with 7/10 bit addressing modes.

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