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MICROCONTROLLER TUTORIALS - 8051

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8051

Introduction

Chapter 1
Types of Memory

Chapter 2
Special Function Registers

Chapter 3
Basic Registers

Chapter 4
Addressing Modes

Chapter 5
Program Flow

Chapter 6
Low Level Information

Chapter 7
Timers

Chapter 8
Serial Port Operations

Chapter 9
Interrupts

Additional Features in 8052

8052 Instruction Set

8051 Microcontroller
Mode 3 - Split Timer

Author : Craig Steiner

Source : 8052.com

Book : The 8051/8052 Microcontroller:
       
 Architecture, Assembly Language, And Hardware Interfacing (Paperback)

Split Timer Mode (mode 3)

Timer mode "3" is a split-timer mode. When Timer 0 is placed in mode 3, it essentially becomes two separate 8-bit timers. That is to say, Timer 0 is TL0 and Timer 1 is TH0. Both timers count from 0 to 255 and overflow back to 0. All the bits that are related to Timer 1 will now be tied to TH0.

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