Isaac,

> It doesn't seem to be really a RMW problem. RMW will make a pin have the
> *wrong* state ( 1 or 0 ), but not an *undefined* state.
>
> The OP said that the pin stays at 1V for a long period (over 10us if I
> understood correctly). This is not '1' nor '0'.
>
> Things to check:
>
> 1) Is the pull-up really connected? Isn't it of a too low value?

1K pull up on SDA (RC1) line and no pull up on SCL (RC2) line. This is 
being used for SEEPROM.

> 2) Is the code really outputting a '0'? (check bank selection, perhaps
> TRISx is not being written).

I am checking on an oscilloscope. That's why i am able to see the 
voltage at 1V.

If I increase the delay to about 1mS, then the voltage reaches 0.

I had used this code as is in other PICmicro.

Cheers

Ravi

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