MICROPROCESSOR AND MICROCONTROLLER

Detailed explanation-1: -A timer uses the frequency of the internal clock, and generates delay. A counter uses an external signal to count pulses.

Detailed explanation-2: -Timers are one of the most important features in modern microcontrollers. They allow us to measure how long something takes to execute, create non-blocking code, precisely control pin timing, and even run operating systems.

Detailed explanation-3: -The Counter/Timer has the ability to measure rise time or fall time from an input signal. The input signal must be connected to channel A. Time correlated measurements can be performed using the arm input. The Counter/Timer will not initiate a measurement until an arm signal of TTL level is detected.

Detailed explanation-4: -The TMOD or Timer Mode register or SFR is used to set the Operating Modes of the Timers T0 and T1. The lower four bits are used to configure Timer0 and the higher four bits are used to configure Timer1.