mahmood Elnasser wrote:
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TH2 = RCAP2H = rate >> 8;
TL2 = RCAP2L = rate;

Regarding line #2 of Mahmood's example and generalizing it a bit, I have seen one compiler implement the statement:

    HW_REG1 = HW_REG2 = value;

as:

    HW_REG2 = value;
    HW_REG1 = HW_REG2;

and another compiler implement the same statement as:

    HW_REG2 = value;
    HW_REG1 = value;

A problem arises in the first case if HW_REG2 is a write-only register. Just something to be aware of... Not that any of you would write code like that, of course ;-)

When dealing with hardware registers, explicitness is your friend.