87C196CB SUPPLEMENT

PTS transfer

The movement of a single byte or word from the

 

source memory location to the destination memory

 

location.

PTS vector

A location in special-purpose memory that holds the

 

starting address of a PTS control block.

PWM

Pulse-width modulated (outputs). The 8XC196Mx

 

devices have several options for producing PWM

 

outputs: the generic pulse-width modulator modules,

 

the waveform generator, and the EPA with or without

 

the PTS. The 8XC196MD also has a frequency

 

generator that produces PWM outputs.

quantizing error

An unavoidable A/D conversion error that results

 

simply from the conversion of a continuous voltage to

 

its integer digital representation. Quantizing error is

 

always ± 0.5 LSB and is the only error present in an

 

ideal A/D converter.

RALU

Register arithmetic-logic unit. A part of the CPU that

 

consists of the ALU, the PSW, the master PC, the

 

microcode engine, a loop counter, and six registers.

repeatability error

The difference between corresponding code

 

transitions from different actual characteristics taken

 

from the same converter on the same channel with the

 

same temperature, voltage, and frequency conditions.

 

The amount of repeatability error depends on the

 

comparator’s ability to resolve very similar voltages

 

and the extent to which random noise contributes to

 

the error.

reserved memory

A memory location that is reserved for factory use or

 

for future expansion. Do not use a reserved memory

 

location except to initialize it with FFH.

resolution

The number of input voltage levels that an A/D

 

converter can unambiguously distinguish between.

 

The number of useful bits of information that the

 

converter can return.

sample capacitor

A small (2–3 pF) capacitor used in the A/D converter

 

circuitry to store the input voltage on the selected

 

input channel.

Glossary-8

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Intel 8XC196NT, 87C196CB PTS transfer, PTS vector, Quantizing error, Repeatability error, Reserved memory, Resolution

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.