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Intel 8XC196NP EPA and TIMER/COUNTER Signals and Registers, EPA and Timer/Counter Signals, Epa

Models: Microcontroller 80C196NU 8XC196NP

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8XC196NP, 80C196NU USER’S MANUAL

 

 

 

 

 

Timer-Counter Unit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TIMER1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TIMER2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Capture/Compare

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EPA0

 

 

 

 

 

 

Channel 0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Capture/Compare

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EPA1

 

 

 

 

 

 

Channel 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Capture/Compare

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EPA2

 

 

 

 

 

 

Channel 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Capture/Compare

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EPA3

 

 

 

 

 

 

 

 

 

Channel 3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EPA0 Interrupt

EPA1 Interrupt

EPA2 Interrupt

EPA3 Interrupt

A2352-02

Figure 10-1. EPA Block Diagram

10.2 EPA AND TIMER/COUNTER SIGNALS AND REGISTERS

Table 10-1 describes the EPA and timer/counter input and output signals. Each signal is multi- plexed with a port pin as shown in the first column. Table 10-2 briefly describes the registers for the EPA capture/compare channels and timer/counters.

Table 10-1. EPA and Timer/Counter Signals

Port Pin

EPA Signal(s)

EPA

Description

Signal Type

 

 

 

P1.3:0

EPA3:0

I/O

High-speed input/output for capture/compare

 

 

 

channels 0–3.

P1.4

T1CLK

I

External clock source for timer 1.

P1.5

T1DIR

I

External direction control for timer 1.

P1.6

T2CLK

I

External clock source for timer 2.

P1.7

T2DIR

I

External direction control for timer 2.

10-2

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Intel 8XC196NP manual EPA and TIMER/COUNTER Signals and Registers, EPA and Timer/Counter Signals, Port Pin EPA Signals, Epa
Page 198 Page 200

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.