A timer is a simple counter! The input clock of microcontroller and operation of the timer is independent of the program execution.All the Atmel microcontrollers have Timers as an inbuilt peripheral.
The AT80C51RD2 is a high performance version of the 80C51 8-bit microcontroller. It has all the features of the Atmel 80C52 with bytes of internal RAM, a 7-source 4-level interrup controller and three ...