Chapter Objectives15.1 Introduction15.1.1 What is a Timer?15.1.2 Purpose of a Timer15.1.3 Differences Between a Timer and a Counter15.2 8051/52 Timers15.3 Functioning of Timers 0 and 115.3.1 Timer/Counter Select Block15.3.2 Run/Stop Control Block15.4 SFRs for Timer 0 and 1 Interrupts15.4.1 TMOD15.4.2 TCON (bits 4, 5, 6 and 7)15.4.3 IE (bits 1, 3 and 7)15.4.4 IP (bits 1 and 3)15.4.5 TL0, TH0, TL1, TH115.5 Interrupt Service Routines15.5.1 Checklist for Timer 015.5.2 Checklist for Timer 115.6 Timer 215.6.1 Similarities with Timers 0 and 115.6.2 Differences with Timers 0 and 115.6.3 Modes of Timer 215.6.4 Functioning of Timer 215.6.5 Timer 2 SFRs15.6.6 Checklist for Timer 215.7 Solved ExamplesSummaryPoints to RememberReview QuestionsEvaluate YourselfSearch for AnswersThink and Solve