CONTENTS

 

FIGURES

 

Figure

 

Page

2-1

8XC196NP and 80C196NU Block Diagram

2-2

2-2

Block Diagram of the Core

2-3

2-3

Clock Circuitry (8XC196NP)

2-7

2-4

Clock Circuitry (80C196NU)

2-8

2-5

Internal Clock Phases

2-9

2-6

Effect of Clock Mode on CLKOUT Frequency

2-10

3-1

Accumulator (ACC_0x) Register

3-4

3-2

Accumulator Control and Status (ACC_STAT) Register

3-5

5-1

16-Mbyte Address Space

5-2

5-2

Pages FFH and 00H

5-3

5-3

Register File Memory Map

5-10

5-4

Windowing

5-13

5-5

Window Selection (WSR) Register

5-14

5-6

Window Selection 1 (WSR1) Register

5-15

5-7

The 24-bit Program Counter

5-23

5-8

Formation of Extended and Nonextended Addresses

5-24

5-9

A 64-Kbyte System With an 8-bit Bus

5-27

5-10

A 64-Kbyte System with Additional Data Storage

5-29

5-11

Example System Using the 1-Mbyte Mode

5-31

6-1

Flow Diagram for PTS and Standard Interrupts

6-2

6-2

Standard Interrupt Response Time

6-9

6-3

PTS Interrupt Response Time

6-9

6-4

PTS Select (PTSSEL) Register

6-11

6-5

Interrupt Mask (INT_MASK) Register

6-12

6-6

Interrupt Mask 1 (INT_MASK1) Register

6-13

6-7

Interrupt Pending (INT_PEND) Register

6-16

6-8

Interrupt Pending 1 (INT_PEND1) Register

6-17

6-9

PTS Control Blocks

6-18

6-10

PTS Service (PTSSRV) Register

6-19

6-11

PTS Mode Selection Bits (PTSCON Bits 7:5)

6-20

6-12

PTS Control Block — Single Transfer Mode

6-21

6-13

PTS Control Block — Block Transfer Mode

6-24

6-14

A Generic PWM Waveform

6-27

6-15

PTS Control Block — PWM Toggle Mode

6-29

6-16

EPA and PTS Operations for the PWM Toggle Mode Example

6-31

6-17

PTS Control Block — PWM Remap Mode

6-34

6-18

EPA and PTS Operations for the PWM Remap Mode Example

6-36

7-1

Bidirectional Port Structure

7-5

7-2

EPORT Block Diagram

7-13

7-3

EPORT Structure

7-15

8-1

SIO Block Diagram

8-1

8-2

Typical Shift Register Circuit for Mode 0

8-4

8-3

Mode 0 Timing

8-5

8-4

Serial Port Frames for Mode 1

8-6

xi

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Image 12
Intel 80C196NU, 8XC196NP, Microcontroller manual Figures
Page 11 Page 13

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.
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