8XC196NP, 80C196NU USER’S MANUAL

 

10.2

EPA AND TIMER/COUNTER SIGNALS AND REGISTERS

10-2

10.3

TIMER/COUNTER FUNCTIONAL OVERVIEW

10-5

10.3.1 Cascade Mode (Timer 2 Only)

10-6

10.3.2

Quadrature Clocking Mode

10-6

10.4

EPA CHANNEL FUNCTIONAL OVERVIEW

10-8

10.4.1

Operating in Capture Mode

10-9

10.4.1.1

EPA Overruns

10-11

10.4.1.2

Preventing EPA Overruns

10-12

10.4.2 Operating in Compare Mode

10-12

10.4.2.1 Generating a Low-speed PWM Output

10-12

10.4.2.2 Generating a Medium-speed PWM Output

10-13

10.4.2.3 Generating a High-speed PWM Output

10-14

10.4.2.4 Generating the Highest-speed PWM Output

10-15

10.5

PROGRAMMING THE EPA AND TIMER/COUNTERS

10-15

10.5.1 Configuring the EPA and Timer/Counter Port Pins

10-15

10.5.2

Programming the Timers

10-15

10.5.3 Programming the Capture/Compare Channels

10-18

10.6

ENABLING THE EPA INTERRUPTS

10-22

10.7

DETERMINING EVENT STATUS

10-22

10.7.1 Using Software to Service the Multiplexed Overrun Interrupts

10-23

10.8

PROGRAMMING EXAMPLES FOR EPA CHANNELS

10-24

10.8.1

EPA Compare Event Program

10-24

10.8.2 EPA Capture Event Program

10-25

10.8.3 EPA PWM Output Program

10-26

CHAPTER 11

 

MINIMUM HARDWARE CONSIDERATIONS

 

11.1

MINIMUM CONNECTIONS

11-1

11.1.1

Unused Inputs

11-2

11.1.2

I/O Port Pin Connections

11-2

11.2

APPLYING AND REMOVING POWER

11-4

11.3

NOISE PROTECTION TIPS

11-4

11.4

THE ON-CHIP OSCILLATOR CIRCUITRY

11-5

11.5

USING AN EXTERNAL CLOCK SOURCE

11-7

11.6

RESETTING THE DEVICE

11-8

11.6.1 Generating an External Reset

11-9

11.6.2 Issuing the Reset (RST) Instruction

11-11

11.6.3 Issuing an Illegal IDLPD Key Operand

11-11

CHAPTER 12

 

SPECIAL OPERATING MODES

 

12.1

SPECIAL OPERATING MODE SIGNALS AND REGISTERS

12-1

12.2

REDUCING POWER CONSUMPTION

12-3

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Intel Microcontroller manual 8XC196NP, 80C196NU USER’S Manual

Microcontroller, 80C196NU, 8XC196NP specifications

The Intel 8XC196NP and 80C196NU microcontrollers are part of Intel's renowned 16-bit microcontroller series that gained popularity in the 1980s and 1990s for embedded systems applications. Designed for a variety of applications, these microcontrollers are characterized by their robust performance, versatility, and industry-standard architecture.

The 8XC196NP features an enhanced instruction set with over 100 instructions, allowing for efficient code execution. It operates at clock speeds up to 16 MHz, which contributes to improved performance in time-sensitive applications. The microcontroller is equipped with a 16-bit data bus, enabling more efficient data handling compared to its 8-bit predecessors, thus accommodating complex algorithms and large data sets.

In terms of memory architecture, the 8XC196NP supports an addressable memory space of up to 64 KB of program memory and 64 KB of data memory. This configuration provides sufficient space for large applications while ensuring fast data access. The microcontroller includes integrated features such as timers, serial I/O capabilities, and interrupt processing, which enhance its functionality for real-time applications and control mechanisms.

The 80C196NU, on the other hand, is designed for lower power operation, making it suitable for battery-powered devices. This microcontroller maintains similar features to the 8XC196NP while offering advancements that support low-power consumption. The 80C196NU can also function in a range of temperature environments, making it adaptable for industrial applications.

Both the 8XC196NP and 80C196NU support external memory interfacing, allowing designers to expand the system's capability by connecting additional ROM and RAM. This flexibility makes them appealing for developing complex systems, such as motor controls, industrial automation, and consumer electronics.

Another standout feature of these microcontrollers is their built-in debugging capabilities. Intel provided hardware and software tools that enabled developers to test and troubleshoot their applications effectively, reducing the development time and increasing reliability.

Overall, the Intel 8XC196NP and 80C196NU microcontrollers stand out for their dependability, versatility, and performance, contributing significantly to the evolution of embedded system design. Their legacy continues to influence modern microcontroller technology, ensuring their relevance in a wide array of applications today.