Subject: Re: Private bus spaces
To: Jukka Marin <>
From: Manuel Bouyer <>
List: tech-kern
Date: 09/28/1998 15:18:44
On Sep 28, Jukka Marin wrote
> Get a datasheet of any I2C memory/RTC/other chip and you get the timing
> diagrams etc.  For example, Microchip has I2C EEPROM chips and Dallas
> has the DS1307 RTC chip which uses I2C.
> Some memory chips use two bytes for address and R/W command, some chips
> use three bytes (because of a larger address space).  Some chips support
> only the slower I2C bus (100 kHz clock, I think) while the newer chips
> support the faster speeds (400 kHz (and over?)) as well.

I wrote dev/i2c for an eeprom chip, so it uses the 'standart' timing.
I hope some parts of it can be reused for other I2C devices as well.

Manuel Bouyer, LIP6, Universite Paris VI.