Manuals / Intel / Personal Care / Microscope & Magnifier

Intel 8XC196NP manual Memory Map for the System in Figure, 80C196NP and 80C196NU External RAM

Models: Microcontroller 80C196NU 8XC196NP

1 471
Download 471 pages 22.3 Kb
Page 103
Image 103

8XC196NP, 80C196NU USER’S MANUAL

Table 5-13. Memory Map for the System in Figure 5-10

Address

 

 

Description

 

 

 

 

FFFFFFH

External flash memory (code or far constants)

FF3000H

 

 

 

FF2FFFH

Program memory:

80C196NP and 80C196NU: External flash memory

FF2080H

 

83C196NP:

Internal ROM (EA# = 1), external memory (EA# = 0)

FF207FH

Special-purpose memory: 80C196NP and 80C196NU: External flash memory

FF2000H

(far constants)

83C196NP:

Internal ROM (EA# = 1), external memory (EA# = 0)

FF1FFFH

External flash memory (code or far constants)

FF0100H

 

 

 

FF00FFH

Reserved

 

 

FF0000H

 

 

 

 

 

FEFFFFH

Unimplemented

 

 

030000H

 

 

 

 

 

02FFFFH

128-Kbyte external RAM (far data)

 

010000H

 

 

 

 

00FFFFH

External RAM (near data)

 

 

003000H

 

 

 

 

 

002FFFH

80C196NP and 80C196NU: External RAM

002000H

83C196NP: External RAM (CCB1.2 = 0) or remapped internal ROM (CCB1.2 = 1)

001FFFH

Internal peripheral special-function registers (SFRs)

001F00H

 

 

 

001EFFH

External RAM (future SFR expansion)

 

001C00H

 

 

 

 

001BFFH

External RAM (near data)

 

 

000400H

 

 

 

 

 

0003FFH

Upper register file (general-purpose register RAM)

000100H

 

 

 

0000FFH

Lower register file (general-purpose register RAM and stack pointer)

000018H

 

 

 

000017H

Lower register file (CPU SFRs)

 

000000H

 

 

 

 

5-30

Page 102 Page 104
Page 103
Image 103
Intel 8XC196NP, Microcontroller manual Memory Map for the System in Figure, 80C196NP and 80C196NU External RAM
Page 102 Page 104

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.