CONTENTS

 

TABLES

 

Table

 

Page

7-9

EPORT Pins

7-11

7-10

EPORT Control and Status Registers

7-12

7-11

Logic Table for EPORT in I/O Mode

7-16

7-12

Logic Table for EPORT in Address Mode

7-16

7-13

Configuration Register Settings for EPORT Pins

7-17

8-1

Serial Port Signals

8-2

8-2

Serial Port Control and Status Registers

8-2

8-3

SP_BAUD Values When Using the Internal Clock at 25 MHz

8-12

8-4

SP_BAUD Values When Using the Internal Clock at 50 MHz (80C196NU Only)

8-13

9-1

PWM Signals

9-2

9-2

PWM Control and Status Registers

9-3

9-3

PWM Output Frequencies (8XC196NP)

9-6

9-4

PWM Output Frequencies (80C196NU)

9-6

9-5

PWM Output Alternate Functions

9-9

10-1

EPA and Timer/Counter Signals

10-2

10-2

EPA Control and Status Registers

10-3

10-3

Quadrature Mode Truth Table

10-7

10-4

Action Taken when a Valid Edge Occurs

10-11

10-5

Example Control Register Settings and EPA Operations

10-18

11-1

Minimum Required Signals

11-1

11-2

I/O Port Configuration Guide

11-2

12-1

Operating Mode Control Signals

12-1

12-2

Operating Mode Control and Status Registers

12-2

12-3

80C196NU Clock Modes

12-13

13-1

Example of Internal and External Addresses

13-1

13-2

External Memory Interface Signals

13-2

13-3

Chip-select Registers

13-6

13-4

ADDRCOMx Addresses and Reset Values

13-7

13-5

ADDRMSKx Addresses and Reset Values

13-8

13-6

Base Addresses for Several Sizes of the Address Range

13-9

13-7

BUSCONx Addresses and Reset Values

13-11

13-8

BUSCONx Registers for the Example System

13-13

13-9

Results for the Chip-select Example

13-14

13-10

Comparison of AC Timings for Demultiplexed and Multiplexed 16-bit Buses

13-26

13-11

READY Signal Timing Definitions

13-27

13-12

HOLD#, HLDA# Timing Definitions

13-31

13-13

Maximum Hold Latency

13-33

13-14

Write Signals for Standard and Write Strobe Modes

13-34

13-15

AC Timing Symbol Definitions

13-42

13-16

AC Timing Definitions

13-42

A-1

Opcode Map (Left Half)

A-2

A-1

Opcode Map (Right Half)

A-3

A-2

Processor Status Word (PSW) Flags

A-4

A-3

Effect of PSW Flags or Specified Conditions on Conditional Jump Instructions

A-5

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Intel 8XC196NP, 80C196NU, Microcontroller manual Example Control Register Settings and EPA Operations

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.