This program shows how to configure the watchdog timer for the following chips: Atmel 80C51RA2 Atmel 80C51RD2 Atmel 80C54X2 Atmel 80C58X2 Atmel 83/87C51RB2 Atmel 83/87C51RC2 Atmel 83/87C51RD2 Atmel T87C5111 Atmel T87C5112 Atmel T89C51AC2 Atmel T89C51CC01 Atmel T89C51CC02 Atmel T89C51IB2 Atmel T89C51IC2 Atmel T89C51RB2 Atmel T89C51RC2 Atmel T89C51RD2