Functional Groupings of Signals | Intel 8XC196NP, 80C196NU instruction

APPENDIX B

SIGNAL DESCRIPTIONS

This appendix provides reference information for the pin functions of the 8XC196NP and 80C196NU.

B.1 FUNCTIONAL GROUPINGS OF SIGNALS

Table B-1 lists the signals for the 8XC196NP and 80C196NU, grouped by function. A diagram of each package that is currently available shows the pin location of each signal.

NOTE

As new packages are supported, they will be added to the datasheets first. If your package type is not shown in this appendix, refer to the latest datasheet to find the pin locations.

Table B-1. 8XC196NP and 80C196NU Signals Arranged by Function

Address & Data

A19:0

AD15:0

Power & Ground

VCC

VSS

Processor Control

EA# (NP only)

EXTINT3:0

NMI

ONCE

PLLEN1 (NU only)

PLLEN2 (NU only)

RESET#

RPD

XTAL1

XTAL2

Input/Output

EPORT3:0

P1.3:0/EPA3:0

P1.4/T1CLK

P1.5/T1DIR

P1.6/T2CLK

P1.7/T2DIR

P2.0/TXD

P2.1/RXD

P2.7:2

P3.7:0

P4.2:0/PWM2:0

P4.3

Bus Control & Status

ALE

BHE#/WRH#

BREQ#

CLKOUT

CS5:0#

HOLD#

HLDA#

INST

RD#

READY

WR#/WRL#

B-1

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.

Intel 8XC196NP, 80C196NU, Microcontroller manual Functional Groupings of Signals

Models: Microcontroller 80C196NU 8XC196NP