87C196CB SUPPLEMENT

source current

Current flowing out of a device from VCC. Always a

 

negative value.

SP

Stack pointer.

special interrupt

Any of the three nonmaskable interrupts (unimple-

 

mented opcode, software trap, or NMI).

special-purpose memory

A partition of memory used for storing the interrupt

 

vectors, PTS vectors, chip configuration bytes, and

 

several reserved locations.

standard interrupt

Any maskable interrupt that is assigned to the

 

interrupt controller for processing by an interrupt

 

service routine.

state time (or state)

The basic time unit of the device; the combined

 

period of the two internal timing signals, PH1 and

 

PH2. (The internal clock generator produces PH1 and

 

PH2 by halving the frequency of the signal on

 

XTAL1. The rising edges of the active-high PH1 and

 

PH2 signals generate CLKOUT, the output of the

 

internal clock generator.) Because the device can

 

operate at many frequencies, this manual defines time

 

requirements in terms of state times rather than in

 

specific units of time.

successive approximation

An A/D conversion method that uses a binary search

 

to arrive at the best digital representation of an analog

 

input.

temperature coefficient

Change in the stated variable for each degree

 

Centigrade of temperature change.

temperature drift

The change in a specification due to a change in

 

temperature. Temperature drift can be calculated by

 

using the temperature coefficient for the specification.

terminal-based characteristic

An actual characteristic that has been translated and

 

scaled to remove zero-offset error and full-scale

 

error. A terminal-based characteristic resembles an

 

actual characteristic with zero-offset error and full-

 

scale error removed.

transfer function

A graph of output code versus input voltage; the

 

characteristic of the A/D converter.

Glossary-10

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Intel 8XC196NT Source current, Special interrupt, Special-purpose memory, Standard interrupt, State time or state

8XC196NT, 87C196CB specifications

The Intel 87C196CB and 8XC196NT are microcontrollers from the C196 family, which was designed to meet the demands of embedded control technology. These microcontrollers are popular in various applications due to their robust architecture, extensive I/O capabilities, and specialized functionality, making them ideal for automotive, industrial, and communication systems.

The 87C196CB is distinguished by its 16-bit architecture, offering a balance of processing power and efficiency. It features a 16-bit data bus, which allows for fast data processing, and a 16-bit address bus, supporting up to 64KB of program memory. The microcontroller integrates on-chip memory, including 2KB of ROM and 128 bytes of RAM, which facilitates faster execution of programs and data handling.

One of the standout features of the 87C196CB is its versatility in I/O operations. It comes equipped with 32 general-purpose I/O lines that can be configured for various functions, including input, output, and interrupt handling. This flexibility enables developers to optimize the microcontroller for their specific application needs.

The 8XC196NT builds on the capabilities of its predecessor, offering advanced functionalities such as an enhanced instruction set and integrated peripherals. It includes additional features like timers, serial communication interfaces, and analog-to-digital converters, which expand its usability in complex embedded systems. The 8XC196NT supports multiple addressing modes, allowing for more efficient programming and memory management.

Both microcontrollers utilize innovative technologies that improve performance and power efficiency. The on-chip operating system support aids in real-time processing and multitasking, making them suitable for time-sensitive applications. Power management features are also incorporated, allowing these microcontrollers to operate in low-power modes, which is crucial for battery-operated devices.

The 87C196CB and 8XC196NT microcontrollers are characterized by their reliability and long service life, meeting the stringent demands of industrial applications. Their ability to perform tasks rapidly, combined with their diverse peripheral support, makes them popular choices among engineers and developers designing embedded systems. Overall, the Intel 87C196CB and 8XC196NT microcontrollers remain relevant in the rapidly evolving landscape of embedded technology, facilitating innovative solutions across various industries.