Circuitry on AT89c52 and AT89c2051 serial interface

Hi I've implemented a simple program to see serial interface between two AT89c52. But now i need to interface AT89c52 with AT89c2051 serial interface. Could you please help me with a circuit diagram...
Circuitry on AT89c52 and AT89c2051 serial interface

Hi I've implemented a simple program to see serial interface between two AT89c52. But now i need to interface AT89c52 with AT89c2051 serial interface. Could you please help me with a circuit diagram...
interrupt driven UART

call any give me an example of LPC2129 interrupt driven uart
interrupt driven UART

call any give me an example of LPC2129 interrupt driven uart
interrupt driven serial comm

hi, i am using an interrupt driven serial,when i use the printf command in main program it gives a error as access violation,and when i disable the EA(interrupt enable bit),it works fine.plz let me...