"And also i want to communicate directly with two uC's but not with help of rs-485 or I2C bus"

Excluding serial communication, I see 2 options. 1) (the best) use dual port memory, Dallas has a small one, Cypress has 1-many k. 2) connect P1 between the 2 uCs and use 2 p3 pins as handshake, this can work, however the logic to handle simultaneous requests can be a bit hairy.

Have fun,

Erik

PS: why do you want to exculde serial comm?