I have to program the 8051 in c??I don't know c at all.
4 possibilities:
1) you are a student, in which case it is the schools duty to teach you and your duty to learn - so posting here is cheating.
2) you are an employee that has been requested to do something (s)he is not qualified for - request reassignment or time to study - telling your supervisor "can do" is lying
3) you are a hobbyist and need to study, requesting someone else to do it is ridiculous.
4) if "C??" is a lousy means of stating "do I have to do it in C or is there other ways" then BASIC is available and, of course, so is assembler.

since 1) or 2) are the most likely causes of your post I sincerely hope you get no help, should it be 3) then buy or borrow Kochan "programming in ANSI C" and start learning. If 4) state whether you know the '51 assembler, any assembler or basic

Erik

BTW listing pin numbers without indicting the derivative and the package is the blind leading the deaf.